Skocz do pozycji: 1.

Tytuł:

Magnetoelectric Effect in Magnetic Materials

Autorzy:

Siratori, K.
Kohn, K.
Kita, E.

Powiązania:

https://bibliotekanauki.pl/articles/1920605.pdf

Data publikacji:

1992-04

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.80.+q

Opis:

Magnetoelectric effect in magnetic insulators is reviewed. Alter an intuitive explanation of the effect in antiferromagnetic Cr$\text{}_{2}$O$\text{}_{3}$, the following topics are discussed on the experiments. Measurement and controlling of antiferromagnetic domains as well as antiferromagnetic domain wall motion. Expansion of the free energy of crystals in terms of magnetic and electric fields and polarizations. Information on the magnetic symmetry of crystals. Investigation of mechanisms of magnetoelectric effect. Excited states and optical observation.

Źródło:

Acta Physica Polonica A; 1992, 81, 4-5; 431-466
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 2.

Tytuł:

Magnetic Anisotropy and Magnetostriction of Atom Pairs

Autorzy:

Kułakowski, K.
Maksymowicz, A. Z.
Magdoń, M.

Powiązania:

https://bibliotekanauki.pl/articles/1931338.pdf

Data publikacji:

1994-05

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.80.+q

Opis:

We calculated one-electron hopping contribution to two-ion magnetic anisotropy and shape magnetostriction in amorphous 3d-alloys. Calculations were performed in the narrow band limit and include spin-orbit coupling, the Zeeman orbital and spin magnetic moments terms with possible partial effective quenching of the orbital magnetic moments in metals. The parameters for numerical calculations are expected to correspond to pairs of Fe atoms with the spin-orbit coupling A= 0.03 eV and hopping integrals of about 3 eV. The magnetic anisotropy K changes its sign at some value Δ$\text{}_{K}$ of effective magnetic splitting Δ proportional to the magnetization. Then the local easy axis which is parallel to the direction of the pair for small Δ switches to perpendicular easy plane case. K is nearly linear vs. Δ for small Δ and varies roughly as Δ$\text{}^{3}$ for large splitting. The dependence of magnetostriction B on Δ is similar to that of magnetic anisotropy K(Δ). For small values of Δ the coefficient B is also linear. Magnetostriction changes its sign at Δ$\text{}_{B}$ and becomes positive for Δ greater than Δ$\text{}_{K}$.

Źródło:

Acta Physica Polonica A; 1994, 85, 5; 869-873
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 3.

Tytuł:

Exchange Magnetostriction in Disordered 2D Ising Ferromagnets

Autorzy:

Kawecka-Magiera, B.
Maksymowicz, A.
Kułakowski, K.
Lenda, A.

Powiązania:

https://bibliotekanauki.pl/articles/1955466.pdf

Data publikacji:

1997-02

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

05.50.+q
75.80.+q

Opis:

We investigate volume and shape magnetoelastic strains of a 2D anisotropic Ising alloy with partial atomic order. Three possible origins of shape strain are distinguished: (i) anisotropy of elastic constants, (ii) anisotropy of magnetic bonds and (iii) anisotropy of the spatial derivatives of magnetic bonds. None of these mechanisms vanishes above the Curie temperature. Equilibrium strains are expressed in terms of anisotropic spin-spin nearest-neighbours correlation functions. These functions are calculated against temperature, both in ferromagnetic and paramagnetic phase. Shape strain decreases monotonously with temperature for the mechanisms (i) and (iii), and has a maximum near the Curie temperature for the case (ii). The results may be relevant for multilayer magnetic systems.

Źródło:

Acta Physica Polonica A; 1997, 91, 2; 297-301
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 4.

Tytuł:

Magnetic Studies of Polycrystalline Magnetostrictive CoPd Films with Large Planar Strain

Autorzy:

Dubowik, J.
Szymański, B.

Powiązania:

https://bibliotekanauki.pl/articles/1931333.pdf

Data publikacji:

1994-05

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.50.Kj
75.80.+q

Opis:

We report on ferromagnetic resonance and torque curves measurements in electrodeposited CoPd alloy films with composition ranged from Co$\text{}_{13}$Pd$\text{}_{87}$ to Co$\text{}_{45}$Pd$\text{}_{55}$. We show that the origin of the multimode structure of ferromagnetic resonance spectra in these strongly magnetostrictive polycrystalline films can be satisfactorily explained on the basis of the independent-grain-approach for a textured microstructure. The fourfold periodicity of the torque curves for the compositional range of 30-35 at% of Co seems to be originated by the microstructure features which lead to a distribution of the easy axis directions within the films.

Źródło:

Acta Physica Polonica A; 1994, 85, 5; 863-867
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 5.

Tytuł:

New Method of Measurement of the Magnetoelastic Characteristics for Tensile Stresses

Autorzy:

Salach, J.
Szewczyk, R.
Bieńkowski, A.
Kolano-Burian, A.
Falkowski, M.

Powiązania:

https://bibliotekanauki.pl/articles/1507139.pdf

Data publikacji:

2010-11

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.80.+q
75.50.Kj

Opis:

The paper presents a novel method of measurements of tensile stress dependence of the magnetic characteristics of ring-shaped cores made of soft amorphous alloys. In the presented method, the uniform tensile stress was applied perpendicularly to the magnetizing field direction. Magnetoelastic core with closed magnetic circuit was fixed on the non-magnetic backings enabling the conversion of compressive force into tensile stresses as well as it enables the core to be winded by magnetizing and sensing windings. Magnetoelastic characteristics measured under tensile stress, for $Fe_{25}Ni_{55}Si_{10}B_{10}$ alloy annealed in temperature 350°C for 1 h, are presented in this paper. The presented results indicate high tensile stress sensitivity of $Fe_{25}Ni_{55}Si_{10}B_{10}$ alloy. Moreover, together with magnetoelastic characteristics for compressive stresses (presented previously in the literature), the describes results create possibility of further development of models of the magnetoelastic effects in amorphous alloys.

Źródło:

Acta Physica Polonica A; 2010, 118, 5; 775-777
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 6.

Tytuł:

The Magnetoelastic Characteristics of $Fe_{70}Ni_8Si_{10}B_{12}$ Amorphous Alloy Subjected to Thermo-Magnetic Treatment

Autorzy:

Bieńkowski, A.
Salach, J.
Szewczyk, R.
Kolano, R.

Powiązania:

https://bibliotekanauki.pl/articles/1813532.pdf

Data publikacji:

2008-01

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.80.+q
75.50.Kj

Opis:

This paper presents the experimental results of the magnetic and magnetoelastic investigation on the properties of $Fe_{70}Ni_8Si_{10}B_{12}$ amorphous alloy, subjected to thermo-magnetic treatment. Samples were annealed at temperature 350°C for 1 hour, in parallel magnetic field (4 kA/m), as well as in transverse field (350 kA/m). Sample annealed without magnetic field was also tested. Magnetoelastic tests were performed under uniform compressive stress, applied to the ring-shaped core, perpendicularly to the direction of magnetizing field. The results indicated that the thermo-magnetic heat treatment changes the magnetic characteristics, but does not have a significant influence on the coarse of magnetoelastic characteristics of $Fe_{70}Ni_8Si_{10}B_{12}$ amorphous alloy.

Źródło:

Acta Physica Polonica A; 2008, 113, 1; 87-90
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 7.

Tytuł:

Spontaneous Magnetostriction of $Lu_2Fe_{17-x}Si_x$

Autorzy:

Andreev, A.
Daniš, S.

Powiązania:

https://bibliotekanauki.pl/articles/1813624.pdf

Data publikacji:

2008-01

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.50.-y
75.80.+q

Opis:

Thermal expansion of $Lu_2$ $Fe_{17-x}Si_x$ solid solutions was measured by X-ray powder diffraction. The magnetic ordering in all compounds within the homogeneity range (x≤3. 4) is accompanied by a large spontaneous volume magnetostriction distributed anisotropically over the principal axes of the hexagonal crystal structure. The volume effect ω_s in the ground state reaches $14.7×10^{-3}$ in $Lu_2Fe_{17}$ and decreases monotonously to $8.9×10^{-3}$ at x = 3.4 following the reduction of magnetic moment. Despite still large $ω_s$, the Invar behavior observed in $Lu_2Fe_{17}$ changes to a positive thermal expansion for x >1 due to increasing Curie temperature.

Źródło:

Acta Physica Polonica A; 2008, 113, 1; 239-242
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 8.

Tytuł:

Influence of Thermomagnetic Treatment on Magnetoelastic Properties of FeNiMoB Amorphous Alloy

Autorzy:

Szewczyk, R.
Svec, P.
Salach, J.
Švec, P.
Bieńkowski, A.
Hoško, J.
Jackiewicz, D.
Kamiński, M.
Winiarski, W.

Powiązania:

https://bibliotekanauki.pl/articles/1366528.pdf

Data publikacji:

2014-07

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.80.+q
75.50.Kj

Opis:

Paper presents the results of magnetoelastic tests of ring-shaped cores made of $Fe_{40}Ni_{38}Mo_{4}B_{18}$ amorphous alloy. The cores were subjected to thermomagnetic annealing under different values of magnetic field. The obtained results enabled us to connect the magnetoelastic characteristics of $Fe_{40}Ni_{38}Mo_{4}B_{18}$ amorphous alloy with the conditions of thermomagnetic treatment of the material.

Źródło:

Acta Physica Polonica A; 2014, 126, 1; 52-53
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 9.

Tytuł:

The Influence of Thermomagnetic Treatment on the Magnetoelastic Characteristics of Fe₆₁Co₁₉Si₅B₁₅ Amorphous Alloys

Autorzy:

Salach, J.
Szewczyk, R.
Svec Sr, P.
Bieńkowski, A.
Jackiewicz, D.
Svec, P.
Nowicki, M.
Winiarski, W.
Kachniarz, M.
Gruszecka, M.

Powiązania:

https://bibliotekanauki.pl/articles/1387877.pdf

Data publikacji:

2015-02

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.80.+q
75.50.Kj

Opis:

Information about magnetoelastic properties of newly developed amorphous magnetic alloys is very important from practical point of view, especially in the case of high permeability materials such as the Fe₆₁Co₁₉Si₅B₁₅ amorphous alloy. In the case of such materials, effect connected with the influence of external stresses on the magnetic properties of the alloy should be tested. This paper presents experimental results of the magnetoelastic properties investigation of the Fe₆₁Co₁₉Si₅B₁₅ amorphous alloy, annealed without magnetic field as well as in the magnetic field. Such thermo-magnetic treatment generated anisotropy has significant influence on the total free energy of magnetic material. In the magnetoelastic investigation, the compressive stress was applied to the ring shaped core, perpendicularly to the magnetizing field direction. Due to the fact, that cores with closed magnetic circuits were used, demagnetization did not change the balance of total free energy in the material.

Źródło:

Acta Physica Polonica A; 2015, 127, 2; 617-619
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 10.

Tytuł:

Magnetostriction Measurements of (Fe-Co)-Mo-Cu-B Alloys with Varying Atomic Fe/Co Ratio

Autorzy:

Vlasák, G.
Janičkovič, D.
Švec, P.

Powiązania:

https://bibliotekanauki.pl/articles/1813539.pdf

Data publikacji:

2008-01

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.50.Kj
75.80.+q

Opis:

Amorphous rapidly quenched ribbons of $(Fe-Co)_{76}Mo_8Cu_1B_{15}$ with the ratio Co/Fe = 0, 1/9, 1/6, 1/4, 1/3, 1/2, 1/1 and 2/1 were prepared by planar flow casting. The dependence of the Curie temperature $T_C$ on Co/Fe ratio was determined. Due to the presence of the invar effect it was possible to measure the spontaneous volume magnetostriction in the temperature interval between 300 K and $T_C$. Field dependences of magnetostriction in parallel and perpendicular directions of applied magnetic field were obtained by direct measurement method. Subsequently, saturation magnetostriction and volume magnetostriction as well as forced magnetostriction were computed. Saturation magnetostriction increases with increasing Co/Fe ratio from 0 up to 17 ppm, depending both on the Co/Fe ratio and on the shift of $T_C$ with composition. The alloy with ratio Co/Fe = 0 exhibits $T_C$ near room temperature, thus field dependences of magnetostriction, corresponding to the dependences of a paramagnetic system are practically linear functions of applied field, corresponding to paramagnetic state.

Źródło:

Acta Physica Polonica A; 2008, 113, 1; 107-110
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 11.

Tytuł:

New Findings in Mössbauer Studies of Amorphous FeMoCuB NANOPERM-Type Alloy

Autorzy:

Jirásková, Y.
Maryško, M.
Miglierini, M.

Powiązania:

https://bibliotekanauki.pl/articles/1813591.pdf

Data publikacji:

2008-01

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.50.Kj
75.80.+q

Opis:

The effect of heat treatments at 603 K (a relaxation of an amorphous structure) and at 723 K (an onset of a bulk nanocrystallization) of a rapidly quenched $Fe_{76}Mo_{8}Cu_{1}B_{15}$ alloy is studied. The differences in sample processing are reflected in magnetization direction as seen by room- and low-temperature Mössbauer spectroscopy.

Źródło:

Acta Physica Polonica A; 2008, 113, 1; 151-154
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 12.

Tytuł:

Anomalous Diamagnetism of $YbPb_3$ Compound: Pressure Effects

Autorzy:

Baranovskiy, A.
Grechnev, G.
Panfilov, A.
Svechkarev, I.
Żogał, O.
Czopnik, A.
Hackemer, A.

Powiązania:

https://bibliotekanauki.pl/articles/1813626.pdf

Data publikacji:

2008-01

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.10.Lp
75.80.+q

Opis:

The effect of a uniform pressure on the magnetic susceptibility was measured for $YbPb_3$ compound, wherein a degeneracy point of the energy bands is located just below the Fermi level and responsible for the anomalous diamagnetism. Theoretical analysis of the experimental data has revealed that a pronounced increase of diamagnetism with pressure is governed by closing the degeneracy point towards the Fermi energy

Źródło:

Acta Physica Polonica A; 2008, 113, 1; 243-246
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 13.

Tytuł:

Magnetoelectric Effect of Cr_{2}O_{3}

Autorzy:

Latacz, Z.

Powiązania:

https://bibliotekanauki.pl/articles/1968405.pdf

Data publikacji:

2000-05

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.80.+q
75.50.Ee

Opis:

A formula for the temperature dependent magnetoelectric susceptibility of Cr$\text{}_{2}$O$\text{}_{3}$ is obtained using the method of renormalized spin waves of Nagai and compared with the formula in random phase approximation. The three coefficients a$\text{}^{g}$, a$\text{}^{LS}$, and a$\text{}^{J}$ which respectively represent the change in the g-factor, in the crystal field splitting and in the exchange integral due to the electric field parallel to the easy axis, are determined by comparing the theoretical with experimental susceptibility curves, as well as the antiferromagnetic resonance shift.

Źródło:

Acta Physica Polonica A; 2000, 97, 5; 733-735
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 14.

Tytuł:

Industrial Application of Magnetoelastic Force and Torque Sensors

Autorzy:

Bieńkowski, A.
Szewczyk, R.
Salach, J.

Powiązania:

https://bibliotekanauki.pl/articles/1535213.pdf

Data publikacji:

2010-11

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.80.+q
07.10.Pz

Opis:

Due to their sensitivity, robustness and the flat shape, the magnetoelastic sensors create new possibilities of industrial applications. This paper presents the results of the field tests of using the magnetoelastic sensors with amorphous alloy ring-shaped cores for ignition detection in locomotive's diesel engines as well as measurements of the torque during the operation of ball valves. Presented results confirm usability of amorphous alloy based, magnetoelastic sensors for specific industrial applications.

Źródło:

Acta Physica Polonica A; 2010, 118, 5; 1008-1009
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 15.

Tytuł:

Magnetoelastic Properties of Hitperm-Type Alloys from Torque Moment

Autorzy:

Salach, J.
Bieńkowski, A.
Szewczyk, R.

Powiązania:

https://bibliotekanauki.pl/articles/1813578.pdf

Data publikacji:

2008-01

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

81.07.Bc
75.80.+q

Opis:

The following paper presents the results of the investigation on the influence of the torque on the magnetic characteristics of the Hitperm-type $Fe_{41.5}Co_{41.5}Cu_1Nb_3B_{13}$ alloy, in as-quenched and nanocrystalline state. The methodology of application of the torque to the ring-shaped core is also described. This methodology gives a possibility of achieving uniform shearing stresses in the core. The results indicate that shearing stress sensitivity of Hitperm-type alloys depends on the annealing and nanocrystallization process. This effect should be considered during the development of magnetoelastic torque sensors.

Źródło:

Acta Physica Polonica A; 2008, 113, 1; 115-118
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 16.

Tytuł:

Influence of Temperature on Magnetostrictive Delay Line Properties

Autorzy:

Salach, J.
Charubin, T.
Nowak, P.
Jackiewicz, D.

Powiązania:

https://bibliotekanauki.pl/articles/1032231.pdf

Data publikacji:

2017-04

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.80.+q
75.50.Kj
81.70.-q

Opis:

This paper presents results of tests performed on magnetostrictive delay line concerning its change in properties during temperature changes. Results indicate that an increase in temperature causes a decrease in wave amplitude and increase in the speed of propagation. The material used for the magnetostrictive delay line was an amorphous steel alloy of Fe-Si-B in tape form.

Źródło:

Acta Physica Polonica A; 2017, 131, 4; 1183-1185
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 17.

Tytuł:

Piezomagnetic Dependences on Magnetic Bias Field of Annealed at 450°C Fe-Cu-Nb-Si-B Alloy

Autorzy:

Kaczkowski, Z.
Milewska, E.
Duhaj, P.
Vlasák, G.

Powiązania:

https://bibliotekanauki.pl/articles/1956531.pdf

Data publikacji:

1997-02

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.60.Nt
75.80.+q
75.60.Ch

Opis:

Magnetic field dependences of the piezomagnetic dynamics, magnetomechanical coupling and elasticity moduli in the Fe$\text{}_{73.5}$Cu$\text{}_{1}$Nb$\text{}_{3}$ Si$\text{}_{13.5}$B$\text{}_{9}$ alloy in an as-quenched state and annealed in vacuum for 1 h at 450°C were investigated. The maximum value of the magnetomechanical coupling coefficient was equal to 0.15 for the as-quenched state and 0.7 after annealing at 450°C. The changes of the elasticity moduli (ΔE effect) from about 60 to 180 GPa were observed after annealing at this temperature. These changes are connected with magnetostriction (equal to 25.8×10$\text{}^{-6}$ at saturation), internal stresses, defects, mechanical, magnetic and heat treatment history.

Źródło:

Acta Physica Polonica A; 1997, 91, 2; 487-490
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 18.

Tytuł:

Excitation of Bulk Spin Waves by Acoustic Wave at the Plane Defect of a Ferromagnet

Autorzy:

Gusieva, Y.
Graczyk, P.
Gorobets, O.
Krawczyk, M.

Powiązania:

https://bibliotekanauki.pl/articles/1030772.pdf

Data publikacji:

2018-03

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.30.Ds
75.78.-n
75.80.+q

Opis:

Excitation of bulk spin waves by acoustic wave localized on the elastic planar defect in the bulk ferromagnet was analytically and numerically investigated. We showed that besides magnetic oscillations forced by acoustic wave strain the resonance between Kosevich wave and bulk spin wave can occurs. For the frequency of the Kosevich wave far below the resonance frequency the amplitude of dynamic magnetization is negligible. For the frequency above the resonance the acoustic wave excites bulk spin wave of the same frequency but different absolute value of the wave vector.

Źródło:

Acta Physica Polonica A; 2018, 133, 3; 489-491
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 19.

Tytuł:

Effect of Nanocrystallization Process on the Magnetomechanical Coupling in Fe-Si-B-Cu-Nb Alloy

Autorzy:

Kaczkowski, Z.
Małkiński, L.
Kuźmiński, M.
Müller, M.

Powiązania:

https://bibliotekanauki.pl/articles/1861130.pdf

Data publikacji:

1994-01

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.80.+q
75.60.Nt
75.60.Ch

Opis:

Magnetic and magnetoelastic properties of the Fe$\text{}_{73.5}$Si$\text{}_{16.5}$B$\text{}_{6}$Cu$\text{}_{1}$Nb$\text{}_{3}$ alloy change considerably during nanocrystallization process. Improvement of magnetic properties is accompanied by the decrease in piezomagnetic parameters such as magnetomechanical coupling and $\Delta E$-effect.

Źródło:

Acta Physica Polonica A; 1994, 85, 1; 201-204
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 20.

Tytuł:

Dynamic Magnetic Properties of the Magnetostrictive Rapidly-Quenched Alloys

Autorzy:

Kolano, R.
Kolano-Burian, A.
Szynowski, J.
Polak, M.
Steczkowska-Kempka, M.

Powiązania:

https://bibliotekanauki.pl/articles/1813583.pdf

Data publikacji:

2008-01

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.30.Gw
75.60.Ej
75.80.+q

Opis:

This work was aimed at investigating the FeNbCuSiB and FeNiMoB type alloys exhibiting relatively high saturation magnetostriction after suitable heat treatment, which makes them suitable for application in force sensors. Samples of both alloys were prepared in a form of toroidal cores wound from amorphous ribbons obtained by melt-spinning, and then the cores were annealed under longitudinal and transverse magnetic field. An effect of the induced magnetic anisotropy and of the applied compressive stresses on the dynamic magnetic properties of both alloys within a frequency range from 50 Hz to 50 kHz was studied.

Źródło:

Acta Physica Polonica A; 2008, 113, 1; 131-134
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 21.

Tytuł:

Magnetic domain structure and magnetically-induced reorientation in Ni-Mn-Ga magnetic shape memory alloy

Autorzy:

Heczko, O.
Bradshaw, V.

Powiązania:

https://bibliotekanauki.pl/articles/1053119.pdf

Data publikacji:

2017-04

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.50.Cc
75.60.Ch
75.80.+q

Opis:

Magnetization process during magnetically induced reorientation and related magnetic domains of cuboid Ni_{50}Mn_{28.5}Ga_{21.5} single crystal with {100} faces was investigated. Magnetic domains were visualized using magneto-optical indicator. The domains pattern is determined by strong uniaxial magnetic anisotropy of Ni-Mn-Ga martensite. Thanks to magnetically induced reorientation the domains arrangements for all three crystal orientations could be obtained and we showed that the size of domains scales with square root of the thickness and penetrates through whole crystal. Visualization of magnetic domains on all faces of cuboid provides the 3D model of magnetic domains.

Źródło:

Acta Physica Polonica A; 2017, 131, 4; 1063-1065
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 22.

Tytuł:

Effect of Temperature on Magnetization Processes in Amorphous Rapidly Solidified FeSiB/CoSiB Bilayer Ribbons

Autorzy:

Capik, M.
Švec, P.
Marcin, J.
Kováč, J.
Sopko, M.
Janičkovič, D.
Škorvánek, I.

Powiązania:

https://bibliotekanauki.pl/articles/1200803.pdf

Data publikacji:

2014-07

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.50.Kj
75.60.Ej
75.80.+q

Opis:

Amorphous bilayers consisting of Fe-Si-B and Co-Si-B layers have been prepared by planar flow casting from a single crucible using a double-nozzle technique. Temperature dependencies of magnetization and hysteresis loops have been investigated in a wide temperature range. At room temperature, the effects of interlayer stresses, induced in material due to different thermal expansion coefficients of two mechanically interconnected soft magnetic layers, resulted in rounded hysteresis loops with flattened central part, indicating a dominant role of magnetization rotational processes. With an increase of measurement temperature, the interlayer stresses are relieved and the hysteresis loops became more squared.

Źródło:

Acta Physica Polonica A; 2014, 126, 1; 120-121
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 23.

Tytuł:

Strain Designed Magnetic Properties of III-V Magnetic Semiconductors

Autorzy:

Stagraczyński, S.
Jasiukiewicz, C.
Dugaev, V.
Berakdar, J.

Powiązania:

https://bibliotekanauki.pl/articles/1402582.pdf

Data publikacji:

2015-08

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.50.Pp
75.30.Gw
75.80.+q

Opis:

We present the theoretical analysis of a possibility of the magnetic anisotropy control using various components of the strain tensor in III-V magnetic semiconductor. We used the Kane model of the valence bands for the numerical simulations of the influence of strain on the Mn doped GaAs valence band structure. Calculating numerically the energy structure of deformed GaMnAs magnetic semiconductor, we also found the total energy of electron system as a function of orientation of the average magnetization vector. Our calculations show how the direction of the magnetization easy axis can be effectively rotated by using different types of deformation.

Źródło:

Acta Physica Polonica A; 2015, 128, 2; 219-221
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 24.

Tytuł:

Joule Heating Preannealing Effect in the Coercivity Field and Magnetostriction Constant of Co$\text{}_{66}$Fe$\text{}_{4}$Mo$\text{}_{2}$Si$\text{}_{16}$B$\text{}_{12}$ Alloy

Autorzy:

Garcia Tello, P.
González, J.
Blanco, J.
Żuberek, R.

Powiązania:

https://bibliotekanauki.pl/articles/2013239.pdf

Data publikacji:

2000-03

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.50.Kj
75.30.Gw
75.80.+q

Opis:

The effect of thermal treatments (by the Joule heating and conventional annealing) on the coercivity and saturation magnetostriction constant in the amorphous and nanocrystalline Co$\text{}_{66}$Fe$\text{}_{4}$Mo$\text{}_{2}$Si$\text{}_{16}$B$\text{}_{12}$ alloy is reported. It is noticeable the near insensibility to the external stress of coercive field and anisotropy field (leading to extremely low value of magnetostriction 1.5×10$\text{}^{-8}$) achieved after the Joule heating by two steps (first one to relax the internal stresses and the second one to develop a fine nanocrystalline structure).

Źródło:

Acta Physica Polonica A; 2000, 97, 3; 595-598
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 25.

Tytuł:

Magnetoelastic Properties of La$\text{}_{0.744}$Ba$\text{}_{0.186}$MnO$\text{}_{3}$ Single Crystals

Autorzy:

Bukhantsev, Yu.
Mukovskii, Ya. M.
Vasiliev, S.
Kundys, B.
Szymczak, H.

Powiązania:

https://bibliotekanauki.pl/articles/2037121.pdf

Data publikacji:

2004

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.47.Lx
75.30.Gw
75.80.+q

Opis:

Magnetoelastic properties of La$\text{}_{0.744}$Ba$\text{}_{0.186}$MnO$\text{}_{3}$ single crystals have been studied. The basic magnetoelastic constants of the crystal have been estimated using the data of magnetostriction and magnetization measurements, which have been carried out in [010] and [110] crystallographic directions in a wide temperature range from 10 K to 150 K. The anomaly of the thermal expansion has been observed at about 185 K. Near this anomaly two almost degenerated phase transitions have been observed. One of these transitions may be related to the structural phase transition, while the second one to the occurrence of spontaneous strains. The magnetostriction of La$\text{}_{0.744}$ Ba$\text{}_{0.186}$MnO$\text{}_{3}$ single crystal seems to arise due to the effect of applied field on the spontaneous strains.

Źródło:

Acta Physica Polonica A; 2004, 105, 1-2; 155-162
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 26.

Tytuł:

Charge-Ordering and Magnetoelastic Coupling Effects on the Magnetocaloric Properties of Manganites

Autorzy:

Reis, M. S.
Gomes, A. M.
Araújo, J. P.
Tavares, P. B.
Amaral, J. S.
Oliveira, I. S.
Amaral, V. S.

Powiązania:

https://bibliotekanauki.pl/articles/2037124.pdf

Data publikacji:

2004

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.30.Sg
75.30.Kz
75.80.+q

Opis:

A study of the magnetocaloric properties of La$\text{}_{1-x-y}$Y$\text{}_{y}$Ca$\text{}_{x}$MnO$\text{}_{3}$, La$\text{}_{1-x}$Cd$\text{}_{x}$MnO$\text{}_{3}$, and Pr$\text{}_{1-x}$Ca$\text{}_{x}$MnO$\text{}_{3}$ manganites with ferromagnetic and charge-ordered states is presented. The ferromagnetic lanthanum manganites show a negative entropy change peakΔ S under the application of a magnetic field at the Curie temperature. However, the magnetoelastic coupling effects lead to a first-order paramagnetic-ferromagn etic transition and an increasedΔ S compared to simple ferromagnets. This effect is analyzed in the framework of the Landau theory of phase transitions which shows a comparable influence of the magnetoelastic couplings and the ordinary magnetic ordering effect. The Pr$\text{}_{1-x}$Ca$\text{}_{x}$MnO $\text{}_{3}$ system shows a rich electric and magnetic phase diagram, with a ferromagnetic insulator phase for 0.15

Źródło:

Acta Physica Polonica A; 2004, 105, 1-2; 163-171
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 27.

Tytuł:

Active LR Integrator Circuit for Drift-Free Magnetoelastic Transducer

Autorzy:

Gazda, P.
Nowicki, M.
Kachniarz, M.

Powiązania:

https://bibliotekanauki.pl/articles/1030439.pdf

Data publikacji:

2018-03

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

07.55.-w
75.50.Kj
75.80.+q

Opis:

Current integrator systems usually use active RC integrator circuits. Crucial dificulty associated with this analogue system is the integrator drift. The following paper presents the idea of the active integrator circuit based on inductive and resistive components. This concept allows to eliminate the time drift of the circuit, which is undesired phenomenon resulting from capacitive components working in the traditional negative feedback loop. The SPICE simulations were performed to validate the presented idea. Then, prototype circuit with discrete components was tested. Inductors were based on nanocrystalline and air cores. The developed solution was tested as magnetoelastic sensors transducer, to confirm the ability for long-term, continuous, drift-free, integrator circuit operation. The results were compared with traditional, RC circuit with automatic drift compensation.

Źródło:

Acta Physica Polonica A; 2018, 133, 3; 745-747
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 28.

Tytuł:

Thermal Evolution of Magnetic Interactions in Ni Nanowires Embedded in Polycarbonate Membranes by Ferromagnetic Resonance

Autorzy:

Ghaddar, A.
Gieraltowski, J.
Gloaguen, F.
Żuberek, R.
Aleshkevych, P.
Kazmierczak, J.
Slawska-Waniewska, A.
Szymczak, H.

Powiązania:

https://bibliotekanauki.pl/articles/1585046.pdf

Data publikacji:

2009-12

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

62.23.Hj
75.80.+q
75.30.Gw

Opis:

Ni polycrystalline nanowires with diameters of 50, 80, and 100 nm were electrodeposited in cylindrical pores of track-etched polycarbonate membranes. Their magnetic properties were determined as a function of temperature using ferromagnetic resonance and magnetization measurements. At room temperature, the uniaxial anisotropy is equal to the shape anisotropy whereas an additional contribution is evidenced at low temperature. This additional contribution is attributed to magnetoelastic effects induced in the nanowires due to the different thermal expansion constants of Ni and polycarbonate. The analysis of magnetization processes in Ni nanowire arrays evidenced strong dipolar interactions inside the wires due to the domain structure. The coercive field of the nanowires was shown to be nearly a linear function of the temperature and could be accounted for temperature dependence of the uniaxial anisotropy.

Źródło:

Acta Physica Polonica A; 2009, 116, 6; 1039-1043
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 29.

Tytuł:

Brillouin Light Scattering Investigations οf Magnetic and Elastic Properties in MBE Grown Trilayer Mo/Co/Au Systems

Autorzy:

Gieniusz, R.
Błachowicz, T.
Maziewski, A.
Petroutchik, A.
Baczewski, L.
Wawro, A.
Hamrle, J.
Serga, O.
Hillebrands, B.

Powiązania:

https://bibliotekanauki.pl/articles/1810471.pdf

Data publikacji:

2009-01

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

76.50.+g
75.70.Cn
75.80.+q

Opis:

The magnetic and elastic properties of epitaxially grown Mo/Co/Au trilayer systems were investigated by the Brillouin light scattering and a ferromagnetic resonance. Using both experimental methods the perpendicular uniaxial anisotropy and the effective in-plane twofold anisotropy contributions were determined as the function of the cobalt thicknesses. Acoustic phonons analysis shows that the elastic constants are decreased with increasing cobalt layer thicknesses.

Źródło:

Acta Physica Polonica A; 2009, 115, 1; 213-216
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 30.

Tytuł:

Anomalous Magnetic Properties of URuGa

Autorzy:

Tran, V. H.
Troć, R.

Powiązania:

https://bibliotekanauki.pl/articles/1964580.pdf

Data publikacji:

1997-08

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

72.15.Qm
75.40.Cx
75.80.+q

Opis:

We present data of the magnetic susceptibility χ(T) and electrical resistivity ρ(T) for the hexagonal URuGa (space group P6̅2m). Below 7 K, χ increases rapidly and the data can be described by the expression χ(T) = χ(0)(1-a√T). ρ(T) in zero field follows the activated form: ρ(T)∼ exp(E$\text{}_{a}$/2k$\text{}_{B}$T ) with E$\text{}_{a}$ = 1.9 meV. In an applied magnetic field of 1 T, the resistivity varies as ρ(T)∼ bT. Between 18 and 250 K the resistivity is linear in -lnT and consistent with a Kondo-like effect.

Źródło:

Acta Physica Polonica A; 1997, 92, 2; 299-302
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 31.

Tytuł:

Application of Neutron Refraction for Characterization and Optimization of High-Damping Iron-Based Alloys

Autorzy:

Udovenko, V. A.
Polyakova, N. A.
Chudakov, I. B.
Milczarek, J. J.
Mikke, K.

Powiązania:

https://bibliotekanauki.pl/articles/2011037.pdf

Data publikacji:

1999-08

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

61.12.-q
75.50.Bb
75.60.Ej
75.80.+q

Opis:

High-damping alloys with the magnetomechanical damping mechanism, based on the Fe-Cr system, have been studied. It has been shown that the direct investigation of the magnetic domain structure in the bulk materials using the neutron refraction method allows one to obtain important quantitative information concerning the formation of the high-damping state. The dependence of the damping capacity on the average magnetic domain size was found to possess a sharp maximum, thus revealing a range of the optimal domain sizes. The results obtained are important for the development of the technology of high-damping materials.

Źródło:

Acta Physica Polonica A; 1999, 96, 2; 303-306
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 32.

Tytuł:

The Influence of Fast Neutron Irradiation on the Magnetostriction of Ceramic YBa$\text{}_{2}$Cu$\text{}_{3}$O$\text{}_{7-δ}$ Sample

Autorzy:

Nabiałek, A.
Vasiliev, S.
Pytel, B.
Chabanenko, V. V.
Piechota, S.

Powiązania:

https://bibliotekanauki.pl/articles/2041474.pdf

Data publikacji:

2004-11

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

74.25.Qt
74.72.Bk
75.80.+q

Opis:

We investigated the magnetostriction of ceramic YBa$\text{}_{2}$Cu$\text{}_{3}$O$\text{}_{7-δ}$ sample both before and after fast neutron irradiation with the fluency of 7.55×10$\text{}^{17}$ n/cm$\text{}^{2}$ and energy of above 0.5 MeV. We have found that after irradiation the widths of both transverse and longitudinal magnetostriction hysteresis loops at a given temperature and at a given external magnetic field increased several times. At 4.2 K and in 10 tesla the widths of the magnetostriction hysteresis loop of the irradiated sample are of an order of 10$\text{}^{-5}$. The results can be understood in the framework of the model of the magnetostriction induced by the pinning forces, assuming the stress in the sample to be induced mainly by the intragrain screening currents.

Źródło:

Acta Physica Polonica A; 2004, 106, 5; 739-744
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 33.

Tytuł:

Dipolar Contributions to Magnetoelastic Energy of Crystal Grains with Interfaces

Autorzy:

Szumiata, T.
Żuberek, R.
Szymczak, H.
Gonzalez, J.

Powiązania:

https://bibliotekanauki.pl/articles/2013177.pdf

Data publikacji:

2000-03

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.80.+q
68.90.+g
78.66.Jg

Opis:

The magnetic anisotropy and magnetostriction in nanocrystalline grains in non-magnetic or magnetic matrix (nanoparticles or nanocrystalline materials) differ from their bulk properties. The interactions between atoms at the interface play the important role in these magnetic properties. In this paper the magnetic dipolar contribution to magnetostriction energy has been calculated for spherical crystal grains (of bcc and fcc symmetry) with interface layer of atoms possessing different magnetic moment. Total magnetoelastic energy of the sphere-interface system is a sum of magnetoelastic energy of the sphere, energy of the interactions between the sphere and the interface and also the energy of the interface. It was shown that magnetoelastic energy depends on the sphere size and interface thickness.

Źródło:

Acta Physica Polonica A; 2000, 97, 3; 531-534
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 34.

Tytuł:

High-Frequency Susceptibilities of Inhomogeneous Magnetoelastic Medium

Autorzy:

Ignatchenko, V. A.
Erementchouk, M. V.

Powiązania:

https://bibliotekanauki.pl/articles/1964778.pdf

Data publikacji:

1997-08

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

62.30.+d
75.80.+q
61.43.Er

Opis:

A response of an inhomogeneous magnetoelastic medium with the zero-mean magnetostriction to high-frequency elastic and electromagnetic fields is studied. It is shown that diagonal susceptibilities have the resonance anomalies in the vicinity of the frequency of the magnetoelastic resonance, while the coefficients of crossing excitations are equal to zero.

Źródło:

Acta Physica Polonica A; 1997, 92, 2; 415-418
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 35.

Tytuł:

Giant Magnetostriction Jumps in Conventional NbTi Superconductor

Autorzy:

Nabiałek, A.
Vasiliev, S.
Chabanenko, V.
Aleksyeyev, P.
Rusakov, V.
Piechota, S.
Szymczak, H.

Powiązania:

https://bibliotekanauki.pl/articles/2046793.pdf

Data publikacji:

2006-04

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

74.25.Qt
74.70.Ad
75.80.+q

Opis:

Magnetostriction of a large slab of conventional NbTi superconductor, with a diameter of about 6 mm, was investigated by the strain gauge technique. At the temperature of 4.2 K and in the external magnetic field of several T we found irreversible magnetostriction of an order of 10$\text{}^{-5}$, where the number means the relative changes of the slab diameter. This large magnetostriction is accompanied by giant magnetostriction jumps, caused by thermomagnetic avalanches. These thermomagnetic avalanches also cause giant jumps of the surface magnetization, which can be observed by using the Hall probes. The results were analyzed in the framework of the pinning induced magnetostriction model.

Źródło:

Acta Physica Polonica A; 2006, 109, 4-5; 633-639
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 36.

Tytuł:

Structural Mechanism of the High-Damping State Formation in the Fe-Mn-Si Shape Memory Alloys

Autorzy:

Udovenko, V. A.
Polyakova, N. A.
Turmambekov, T. A.

Powiązania:

https://bibliotekanauki.pl/articles/2011038.pdf

Data publikacji:

1999-08

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

61.16.-d
75.50.Bb
75.60.Ej
75.80.+q

Opis:

The structural mechanism of the high-damping state formation in the Fe-Mn-Si alloys has been investigated using transition electron microscopy and logarithmic decrement measurements. The high level of the elastic energy dissipation was found to be connected with a reversible movement of the Shockley dislocations under the sign changing stress action. The Shockley dislocations density and mobility are controlled by the alloys compositions and prior deformation value. The increase in the dislocations density with the help of the special cycling treatments can improve the alloys damping capacity.

Źródło:

Acta Physica Polonica A; 1999, 96, 2; 307-310
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 37.

Tytuł:

Investigation of Magnetoelastic Properties of $Ni_{0.36}Zn_{0.64}Fe_2O_4$ Ferrite Material under Low Magnetizing Fields Corresponding to Rayleigh Region

Autorzy:

Kachniarz, M.
Bieńkowski, A.
Szewczyk, R.

Powiązania:

https://bibliotekanauki.pl/articles/1398307.pdf

Data publikacji:

2017-04

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.50.Gg
75.30.-m
07.55.-w
75.80.+q

Opis:

The following paper presents original results of study on the magnetoelastic properties of Ni-Zn (nickel-zinc) ferrite material under low magnetizing fields, corresponding to the so-called Rayleigh region. The investigated $Ni_{0.36}Zn_{0.64}Fe_2O_4$ material was formed into frame-shape sample allowing to obtain uniform stress distribution. Special digitally controlled measurement system was utilized to perform investigation. Obtained results are presented in the paper. On the basis of them mathematical description of magnetoelastic effect in investigated material was developed as an extend of the Rayleigh model of magnetic hysteresis. Comparison of the experimental and modeling results indicates that the developed model is correct.

Źródło:

Acta Physica Polonica A; 2017, 131, 4; 1066-1068
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

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Skocz do pozycji: 38.

Tytuł:

Magnetic Anisotropy and Magnetostriction Oscillations in Magnetic Multilayers

Autorzy:

Szymczak, H.
Żuberek, R.
Stobiecki, F.

Powiązania:

https://bibliotekanauki.pl/articles/2011101.pdf

Data publikacji:

1999-09

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

74.25.Ha
75.70.-i
75.70.Cn
75.80.+q

Opis:

Interlayer pseudodipolar coupling between two ferromagnets separated by nonmagnetic spacer is analyzed. It was shown that this type of interaction should induce magnetic anisotropy and magnetostriction oscillations. It was also predicted that both magnetic anisotropy and magnetostriction decrease with an increase in the spacer thickness. This effect was observed in [permalloy/Cu]$\text{}_{100}$ multilayers.

Źródło:

Acta Physica Polonica A; 1999, 96, 3-4; 495-499
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 39.

Tytuł:

Surface Treatment Effect on Bulk Magnetoelastic Properties of High Damping Fe-Based Alloys

Autorzy:

Chudakov, I. B.
Udovenko, V. A.

Powiązania:

https://bibliotekanauki.pl/articles/1945271.pdf

Data publikacji:

1996-03

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

62.40.+i
75.50.Bb
75.60.Ej
75.80.+q

Opis:

Binary and complex alloyed high damping steels on the base of Fe-Cr and Fe-Al systems was investigated. It was shown that already slight surface treatment leads to the increase in magnetic anisotropy of the material and to the decrease in damping capacity.

Źródło:

Acta Physica Polonica A; 1996, 89, 3; 425-430
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 40.

Tytuł:

Amorphous Soft Magnetic $Fe_{80}B_{11}Si_{9}$ Alloy in Tensile Stress Sensors Application

Autorzy:

Salach, J.
Jackiewicz, D.
Bieńkowski, A.
Szewczyk, R.
Gruszecka, M.

Powiązania:

https://bibliotekanauki.pl/articles/1367312.pdf

Data publikacji:

2014-07

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.80.1q
75.50.Kj

Opis:

Paper presents the results of investigations of the influence of the tensile stresses on magnetic characteristics of $Fe_{80}B_{11}Si_{9}$ amorphous alloy in as quenched and annealed state. For the tests, a special methodology of application of uniform tensile stresses to the ring shaped sample was developed. Due to special non-magnetic pads, the magnetizing and sensing coils can be wound around the core. Experimental results indicate high stress sensitivity of $Fe_{80}B_{11}Si_{9}$ alloy in both as-quenched and annealed state. Permeability of the core decreases over 64% and 58% for as-quenched and annealed core respectively, especially for lower values of the amplitude of magnetizing field.

Źródło:

Acta Physica Polonica A; 2014, 126, 1; 102-103
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 41.

Tytuł:

Influence of Annealing Treatment on the Structure and Magnetic Properties of Fe-Al-Cu-Nb-Si-B Alloys

Autorzy:

Pavlík, G.
Matta, P.
Sovák, P.
Zorkovská, A.
Konč, M.

Powiązania:

https://bibliotekanauki.pl/articles/2013354.pdf

Data publikacji:

2000-05

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

61.16.Bg
75.50.Kj
75.80.+q
81.40.Rs

Opis:

In this paper we present experimental results on influence of Al content on the structure and saturation magnetostriction of Fe-Al-Cu-Nb-Si-B alloys after heat treatment. Transmission electron microscopy observations confirmed the existence of nanocrystalline structure after annealing at 490°C and 550°C for all samples. The crystallization temperature of FeSi phase and the temperature at which the polycrystalline transformation starts were determined from temperature dependence of electrical resistivity. Aluminium slightly decreases the first crystallization temperature and considerably decreases the saturation magnetostriction in as-quenched state.

Źródło:

Acta Physica Polonica A; 2000, 97, 5; 741-744
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 42.

Tytuł:

Antiferromagnetic order in the half-Heusler phase TbPdBi

Autorzy:

Pavlosiuk, O.
Kleinert, M.
Wiśniewski, P.
Kaczorowski, D.

Powiązania:

https://bibliotekanauki.pl/articles/1047687.pdf

Data publikacji:

2018-03

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.50.Ee
75.80.+q
71.55.Ak
72.15.Eb

Opis:

Single crystals of TbPdBi, a representative of the group of half-Heusler bismuthides, were studied by means of magnetic susceptibility, heat capacity, electrical resistivity, magnetostriction and thermal expansion measurements. The compound was characterized as an antiferromagnet with the Néel temperature T_{N} ≈5.3 K. Neutron diffraction experiment confirmed the antiferromagnetic ordering and yielded the propagation vector k=(1/2,1/2,1/2). Remarkably, this k vector is in accord with the recently developed theory of antiferromagnetic topological insulators.

Źródło:

Acta Physica Polonica A; 2018, 133, 3; 498-500
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 43.

Tytuł:

Effect of Compressive Load on Magnetic Shape Memory Effect in Ni-Mn-Ga Single Crystal

Autorzy:

Richterová, K.
Drahokoupil, J.
Kopecký, V.
Dragounová, K.
Landa, M.
Heczko, O.

Powiązania:

https://bibliotekanauki.pl/articles/1402131.pdf

Data publikacji:

2015-10

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

61.05.cp
62.40.+i
75.50.Cc
75.80.+q

Opis:

We investigated the effect of large compressive stress on magnetic shape memory effect in modulated 10M martensite of Ni-Mn-Ga Heusler alloy. The single crystalline sample deformed approximately elastically up to highest load 540 MPa. Structural and microstructural changes of a single crystal were analysed by X-ray diffraction 2D scan mapping in 2θ and ω. Although the crystal structure, lattice cell parameters, and twinned microstructure (a/b and modulation twinning) exhibited only small changes after the loading, the volume of the sample undergoing the magnetically induced reorientation decreased sharply while magnetic field necessary for the reorientation gradually increased. The extrapolation suggested that no magnetically induced reorientation might occur after compression of about 1 GPa.

Źródło:

Acta Physica Polonica A; 2015, 128, 4; 704-708
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 44.

Tytuł:

Ordering and Magnetoelastic Properties of Fe-Ga Alloy

Autorzy:

Perduta, K.
Olszewski, J.
Busbridge, S.
Nabiałek, M.

Powiązania:

https://bibliotekanauki.pl/articles/1811585.pdf

Data publikacji:

2008-12

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

76.80.+y
75.50.Bb
75.80.+q
81.40.Ef
83.80.Ab

Opis:

In this paper the investigations of the ordering, microstructure and magnetomechanical properties of the $Fe_{80}Ga_{20}$ alloy and its composites are presented. The composites consisted of the Fe-Ga particles with a size distribution in the range between 20 and 50 μm. These particles were produced by blade-milling of arc-melted alloy. After milling the powders were annealed at 723 K for 2.5, 7.5, and 12.5 h. The epoxy-bonded composites in rectangular shape were made from the as-cast as well as from the annealed powders. The Mössbauer spectroscopy studies revealed that the as-cast alloy is completely disordered. After annealing at 723 K the long range atomic order appeared. It was stated that the best magnetoelastic properties were exhibited by composites made from ferromagnetic particles obtained from the as-cast alloy. The measured saturation magnetostriction was $λ_s = 70× 10^{-6}$ for the bulk alloy and $λ_s=100× 10^{-6}$ for composite.

Źródło:

Acta Physica Polonica A; 2008, 114, 6; 1537-1543
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 45.

Tytuł:

Ferromagnetic Resonance Studies of La$\text{}_{0.67}$Ca$\text{}_{0.33}$MnO$\text{}_{3}$ Film under Stress

Autorzy:

Kundys, B.
Dyakonov, V. P.
Baran, M.
Gierłowski, P.
Szymczak, R.

Powiązania:

https://bibliotekanauki.pl/articles/2037113.pdf

Data publikacji:

2004

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

73.50.Jt
75.80.+q
68.60.Bs
71.70.Ej

Opis:

Ferromagnetic resonance spectra of the La$\text{}_{0.67}$Ca$\text{}_{0.33}$MnO$\text{}_{3}$ ferromagnetic film deposited onto the x-cut LiNbO$\text{}_{3}$ substrate were investigated in a wide temperature range. The strain was mechanically introduced into the film using a special holder configuration. This leads to a shift of resonance field with respect to that of the as-grown sample. Analysis of the magnetic resonance shift, induced by a mechanical stress, allowed us to determine the magnetostriction constant λ$\text{}_{100}$. The magnetostriction determined in this way versus saturation magnetization could be well described by the Callen and Callen theory suggesting the domination of the single ion crystal field interaction in the sample being in the ferromagnetic state.

Źródło:

Acta Physica Polonica A; 2004, 105, 1-2; 133-139
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 46.

Tytuł:

Studies on Structural, Dielectric, and Electrical Properties of a $Ni_{0.284}Zn_{0.549}Cu_{0.183}Fe_{1.984}O_4$ Piezomagnetic Material

Autorzy:

Balusamy, R.
Kumaravel, P.
Kanagathara, N.
Gowri Shankar Rao, R.
Renganathan, N.

Powiązania:

https://bibliotekanauki.pl/articles/1398351.pdf

Data publikacji:

2016-09

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.80.+q
77.22.-d
77.22.Gm
68.37.Hk

Opis:

Piezomagnetic materials in composition $Ni_{0.284}Zn_{0.549}Cu_{0.183}Fe_{1.984}O_4$ were prepared by mixed oxide method at 1100°C. Powder X-ray diffraction studies confirm the crystalline nature of the synthesized $Ni_{0.284}Zn_{0.549}Cu_{0.183}Fe_{1.984}O_4$ piezomagnetic material. The crystallite size is calculated to be 19.332 μ m using the Debye-Scherrer formula. The surface morphology and particle size of the samples has been studied by scanning electron microscopy. The thermal stability and decomposition behaviour of $Ni_{0.284}Zn_{0.549}Cu_{0.183}Fe_{1.984}O_4$ piezomagnetic material have been studied by thermogravimetric analysis at a heating rate of 15°C/min. The effective activation energy of the prepared composite was calculated using single heating rate methods: Broido's and Coats-Redfern methods. Dielectric properties of $Ni_{0.284}Zn_{0.549}Cu_{0.183}Fe_{1.984}O_4$ piezomagnetic material have been studied in a wide range of frequencies and temperatures. The magnetic behavior of $Ni_{0.284} Zn_{0.549} Cu_{0.183} Fe_{1.984}O_4$ piezomagnetic material at room temperature has been confirmed by vibrational sample magnetometer studies.

Źródło:

Acta Physica Polonica A; 2016, 130, 3; 751-757
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 47.

Tytuł:

Newly Developed Systems for the Magnetostrictive Materials Strain Measurements

Autorzy:

Kuczyński, K.
Bieńkowski, A.
Salbut, L.
Dymny, G.

Powiązania:

https://bibliotekanauki.pl/articles/1813528.pdf

Data publikacji:

2008-01

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.80.+q
42.50.St
07.10.Pz
07.60.Ly

Opis:

Magnetostrictive effect is connected with changes of the dimension of soft magnetic materials during the process of theirs magnetization. The paper presents newly developed measuring systems for testing of the strain distribution in the magnetostrictive materials. The system uses simultaneously two measurement techniques: strain-gauge sensor for local strain measurement and grating interferometry for the global determination of strain distribution.

Źródło:

Acta Physica Polonica A; 2008, 113, 1; 71-74
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 48.

Tytuł:

Stress Monitoring in Steel Elements via Detection of AC Magnetic Permeability Changes

Autorzy:

Szumiata, T.
Hibner, K.
Dziewiecki, K.
Mazur, Z.
Gockiewicz, A.
Gzik-Szumiata, M.
Górka, B.
Witoś, M.

Powiązania:

https://bibliotekanauki.pl/articles/1030407.pdf

Data publikacji:

2018-03

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.80.+q
75.60.Ej
75.50.Bb
75.30.Gw
62.20.D-

Opis:

The influence of mechanical stress on low frequency AC magnetic permeability was studied. The cold-drawn bars with C45 steel were subjected to investigation. The tensile stress (within elastic regime) was applied by means of material testing machine. Simple measuring system was assembled, which consisted of: function generator with magnetizing coil, detection coil and precise AC voltmeter. The registered changes of induced voltage were proportional to the change of magnetic permeability of the stretched rods. The obtained results were almost frequency-independent due to low frequency limit (250-500 Hz, weak eddy currents, no spin-origin energy dissipation). A significant magneto-mechanical hysteresis was observed slightly evolving from cycle to cycle with tendency of stabilization. The extension of basic Stoner-Wohlfarth model of magnetic permeability allowed to fit the data reproducing hysteretic behavior and considering the relaxation of the internal stress. The proposed, low-cost method is suitable in the industrial applications for stress control in large-sized steel elements.

Źródło:

Acta Physica Polonica A; 2018, 133, 3; 719-721
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 49.

Tytuł:

Magnetoelastic Villari Effect in Structural Steel Magnetized in the Rayleigh Region

Autorzy:

Kachniarz, M.
Kołakowska, K.
Salach, J.
Szewczyk, R.
Nowak, P.

Powiązania:

https://bibliotekanauki.pl/articles/1030824.pdf

Data publikacji:

2018-03

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.30.-m
75.60.-d
75.50.Cc
75.80.+q
07.10.Lw

Opis:

The following paper presents the results of investigation on the magnetoelastic Villari effect in structural steel magnetized in the so-called Rayleigh region, which corresponds to relatively low magnetizing fields, much lower than coercive field. Two grades of structural steel were investigated during the performed measurements. Obtained results indicate significant correlation between applied mechanical stress and magnetic properties of the investigated materials.

Źródło:

Acta Physica Polonica A; 2018, 133, 3; 660-662
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 50.

Tytuł:

Magnetoelastic Villari Effect in Ferrite Materials for Force and Stress Sensors Working in Low Magnetizing Field Region

Autorzy:

Kachniarz, M.
Bieńkowski, A.
Salach, J.
Szewczyk, R.

Powiązania:

https://bibliotekanauki.pl/articles/1030958.pdf

Data publikacji:

2018-04

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.30.-m
75.60.-d
75.50.Gg
75.80.+q
07.10.Lw

Opis:

The following paper presents the original results of investigation on the magnetoelastic properties of ferrite materials magnetized in low field region, which could be utilized in development of force and stress sensors. The objects of investigation were two ferrite materials (manganese-zinc Mn-Zn and nickel-zinc Ni-Zn). The magnetoelastic characteristics of the materials were investigated with the special measurement system, allowing measurement of magnetic parameters of the ferrite materials magnetized with low fields under the influence of the compressive stress. The obtained results indicate that there is a strong correlation between the magnetic properties of the material in low magnetizing field region, and applied mechanical stress, which allows development of the magnetoelastic stress or force sensor with ferrite core working in low magnetizing field region.

Źródło:

Acta Physica Polonica A; 2018, 133, 4; 1056-1059
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 51.

Tytuł:

Assessment of the Magnetostrictive Properties of the Selected Construction Steel

Autorzy:

Juś, A.
Nowak, P.
Gińko, O.

Powiązania:

https://bibliotekanauki.pl/articles/1032160.pdf

Data publikacji:

2017-04

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

75.80.+q
75.50.Bb
85.70.Ec
07.55.Ge
46.25.Hf

Opis:

The paper presents results of research on the effects of mechanical stresses on the magnetostrictive properties of 13CrMo4-5 steel. Measurements of stress dependence of magnetostriction fill the gap in the state of the art enabling description of relationships between stresses applied to the samples and its magnetoelastic and magnetostrictive properties. Performed studies represent the starting point for development of unified model of both Villari (magnetoelastic) and Joule (magnetostrictive) effects under stresses in steels. The formulated model will be the basis for the development of generalized methods of interpreting the results of non-destructive testing of the state of the internal stresses in steels based on these phenomena.

Źródło:

Acta Physica Polonica A; 2017, 131, 4; 1084-1086
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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Skocz do pozycji: 52.

Tytuł:

Surface Magnetostriction Model for MagNEMS

Autorzy:

Szumiata, T.
Gzik-Szumiata, M.

Powiązania:

https://bibliotekanauki.pl/articles/1201850.pdf

Data publikacji:

2014-07

Wydawca:

Polska Akademia Nauk. Instytut Fizyki PAN

Tematy:

62.25.-g
85.85.+j
75.80.+q
85.70.Ec
68.35.-p

Opis:

In this work the influence of surface roughness on magnetostrictive nano-actuator parameters has been analyzed theoretically. A mechanical and magnetoelastic behavior of investigated cantilever bimorphic system has been described in the frame of the simple analytical model. Realistic material parameters have been incorporated into the model for high-magnetostrictive galfenol (Fe-Ga) thin films on silicon substrate. It has been shown that for 5 nm thick galfenol film a flat surface magnetostrictive effects modify the cantilever deflection and force only by 3%, whereas in the case of rough surface this influence increases to about 15%, when dimensions of roughness steps are comparable to the distances between them.

Źródło:

Acta Physica Polonica A; 2014, 126, 1; 200-201
0587-4246
1898-794X

Pojawia się w:

Acta Physica Polonica A

Dostawca treści:

Biblioteka Nauki

/5

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