Autor: Novak, J. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Rayleigh Region in Amorphous and Nanocrystaline FINEMET Alloy
Autorzy:: Novák, L.
Kováč, J.
Powiązania:: https://bibliotekanauki.pl/articles/1200807.pdf
Data publikacji:: 2014-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.50.Kj
75.50.Tt
75.60.Ch
75.60.Ej
75.60.Jk
Opis:: The magnetization processes in region of small excitation magnetic fields - Rayleigh region, were investigated on the amorphous and nanocrystalline FINEMET ribbons. The significant differences in behaviour of these materials were found. This could be explained by the difference in the value of magnetoelastic anisotropy as well as by the different thickness of the domain walls in these materials.
Źródło:: Acta Physica Polonica A; 2014, 126, 1; 126-127
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Magnetic Properties of Nanocrystalline Alloys after Electrons Irradiation
Autorzy:: Sitek, J.
Holková, D.
Dekan, J.
Novák, P.
Powiązania:: https://bibliotekanauki.pl/articles/1030257.pdf
Data publikacji:: 2017-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 33.45.+x
61.46.-w
75.50.Kj
Opis:: Nanocrystalline (Fe₃Ni₁)₈₁Nb₇B₁₂ alloy was irradiated by electron beams of doses up to 4 MGy. Irradiation had an influence on the magnetic microstructure of the studied alloys. It has manifested as a change in the mean orientation of local magnetization, intensity of the internal magnetic field, and distribution function of induction of internal magnetic field. All these parameters were determined from the measured Mössbauer spectra. The mean orientation of local magnetization was the most sensitive parameter. Structural changes were not identified by the Mössbauer spectroscopy and by X-ray diffraction. The results indicated that the changes of the microscopic magnetic parameters induced by irradiation depend on the phase composition. Intensity of internal magnetic field also contributes to resistivity of alloy against radiation.
Źródło:: Acta Physica Polonica A; 2017, 131, 4; 708-710
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Influence of Pulse Heating on Rayleigh Area of Amorphous FINEMET-Type Alloy
Autorzy:: Novák, L.
Kováč, J.
Hubač, L.
Powiązania:: https://bibliotekanauki.pl/articles/1032143.pdf
Data publikacji:: 2017-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.20.En
75.50.Kj
75.60.Nt
75.60.Jk
Opis:: The effect of pulse annealing on magnetization processes in FINEMET-type alloy in weak magnetic fields (the Rayleigh area) is studied in this paper. Rapidly quenched FINEMET ribbon in the original amorphous state was chosen for the study. The significant differences in behavior of studied materials are ascribed to the differences in internal mechanical stresses, which bring about the changes in total magnetic anisotropy and consequently also changes in domain walls thickness.
Źródło:: Acta Physica Polonica A; 2017, 131, 4; 753-755
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: On the Mechanism of H-Induced Curie-Point Relaxation in Fe-Based Glassy Alloys
Autorzy:: Balla, S.
Kováč, J.
Novák, L.
Lovas, A.
Powiązania:: https://bibliotekanauki.pl/articles/1813523.pdf
Data publikacji:: 2008-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.23.Cq
71.55.Jv
75.50.Kj
81.40.Rs
Opis:: In Fe based glasses not solely the stress-sensitive magnetic properties, but also the amorphous Curie temperature $(T_C^{am})$ can be altered by hydrogen absorption or due to the low temperature "heat treatments" in liquid $N_2$ (-196°C). The sign and magnitude of this $T_C^{am}$ shift is strongly compositional dependent, but it is also influenced by the thermal history of glasses (heat treatments). In this paper new experimental results are presented, which were obtained on FeCrB alloys, supporting the previous observations. An attempt of interpretation of the results is also made, which is based on the existence of the quenched-in phase reminiscences, being inherited from the liquid structure.
Źródło:: Acta Physica Polonica A; 2008, 113, 1; 55-59
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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