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Wyszukujesz frazę "Klein, G." wg kryterium: Wszystkie pola

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Local Magnetometry of $Cu_{0.064}TiSe_{2}$
    Autorzy:
    Pribulová, Z.
    Medvecká, Z.
    Kačmarčík, J.
    Komanický, V.
    Klein, T.
    Husaníková, P.
    Cambel, V.
    Šoltýs, J.
    Karapetrov, G.
    Samuely, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1372336.pdf
    Data publikacji:
    2014-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    74.25.Ha
    74.25.Wx
    Opis:
    Local magnetometry using miniature Hall-probe array was used to study vortex distribution in superconducting single crystal of $Cu_{x}TiSe_{2}$, with x=0.064 and $T_{c}$=3.2 K. We show that vortices after penetration into the sample move towards the center, resulting into a dome-shape field profile. Such a profile is a signature of relatively low pinning. We show that these measured profiles are consistent with a model proposed for the samples in the absence of bulk pinning. Modifications necessary to obtain quantitative agreement between the model and the data are presented.
    Źródło:
    Acta Physica Polonica A; 2014, 126, 1; 370-371
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of the Fixation Patterns on Magnetic Characteristics of Amorphous Glass-Coated Sensoric Microwires
    Autorzy:
    Hudak, R.
    Varga, R.
    Hudak, J.
    Praslicka, D.
    Blazek, J.
    Polacek, I.
    Klein, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1202355.pdf
    Data publikacji:
    2014-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    87.85.G-
    87.85.fk
    85.70.Ay
    Opis:
    Some of the frequent reasons of titanium implant failures in human body are incorrect biomechanical interactions within the tissue-implant interface and inflammatory processes arising around the implant's application area. For both processes, it is crucial to locate them and intervene in time. One of the monitoring possibilities of the mentioned processes is the application of amorphous glass-coated sensoric microwires (AGCSM). Magnetic characteristics of these microwires are influenced by both mechanical tension (magnetoelastic interaction of the magnetic moment with mechanical stress) and by temperature (different coefficient of thermal expansion of the metal core and glass coating). The key task, in order to change the magnetic characteristics of AGCSM from both clinical and scanning point of view, appears to be the fixation pattern of AGCSM in the implant's body. The presented study shows the impact of four types of AGCSM fixation patterns (at one ending, at both endings, in the middle and along the entire length) on the thermal response process tested in laboratory conditions. The obtained results will enable to establish the AGCSM fixation methodology in the implant's body in order to achieve optimal output temperature parameters form the implant and the tissue-implant interface by magnetic contactless measurements.
    Źródło:
    Acta Physica Polonica A; 2014, 126, 1; 417-418
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Current Annealing on Domain Structure in Amorphous and Nanocrystalline FeCoMoB Microwires
    Autorzy:
    Klein, P.
    Varga, R.
    Onufer, J.
    Ziman, J.
    Badini-Confalonieri, G.
    Vazquez, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1032776.pdf
    Data publikacji:
    2017-04
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.50.Kj
    75.60.Ej
    75.60.Jk
    75.70.Kw
    75.60.Ch
    Opis:
    The influence of current annealing on the complex domain structure in amorphous and nanocrystalline FeCoMoB microwire has been studied. The thickness of radial domain structure together with the switching field of single domain wall change as a consequence of variation of complex internal stress distribution inside metallic core. Firstly, radial domain structure thickness monotonously increases with increasing annealing DC current density for amorphous state. Switching field exhibits local minimum in nanocrystalline sample annealed at 500 MA/m^2 for 10 min when the lowest thickness of outer shell (182 nm) was observed. Such annealed sample (which magnetic properties exhibit excellent temperature stability) is suitable candidate for miniaturized sensor construction for sensing the magnetic field or mechanical stress.
    Źródło:
    Acta Physica Polonica A; 2017, 131, 4; 681-683
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Superconducting Transition in Boron Doped Silicon Films
    Autorzy:
    Kociniewski, T.
    Débarre, D.
    Grockowiak, A.
    Kačmarčík, J.
    Marcenat, C.
    Bustarret, E.
    Ortega, L.
    Klein, T.
    Prudon, G.
    Dubois, C.
    Gautier, B.
    Dupuy, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1535297.pdf
    Data publikacji:
    2010-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    74.62.Dh
    73.61.Cw
    74.70.Ad
    Opis:
    We report on a detailed analysis of the superconducting properties of boron-doped silicon films grown along the 001 direction by gas immersion laser doping. This technique is proved to be a powerful technique to dope silicon in the alloying range 2-10 at.% where superconductivity occurs. The superconducting transitions are sharp and well defined both in resistivity and magnetic susceptibility. The variation of $T_{c}$ on the boron concentration is in contradiction with a classical exponential dependence on superconducting parameters. Electrical measurements were performed in magnetic field on the sample with $c_{B}$ = 8 at.% (400 laser shots) which has the highest $T_{c}$ (0.6 K). No hysteresis was found for the transitions in magnetic field, which is characteristic of a type-II superconductor. The corresponding upper critical field was on the order of 1000 G at low temperatures, much smaller than the value previously reported. The temperature dependence of $H_{c2}$ is very well reproduced by the linearized Gorkov equations neglecting spin effects in the very dirty limit. These measurements in magnetic field allow an estimation of the electronic mean-free path, the coherence length, and the London penetration depth within a simple two-band free electron model.
    Źródło:
    Acta Physica Polonica A; 2010, 118, 5; 1026-1027
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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