Autor: Švindrych, Z. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Link between Magnetic and Dielectric Properties in Magnetite
Autorzy:: Švindrych, Z.
Youssef, A.
Janů, Z.
Powiązania:: https://bibliotekanauki.pl/articles/1534794.pdf
Data publikacji:: 2010-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 71.30.+h
75.60.-d
75.85.+t
Opis:: We have measured temperature dependence of magnetic and dielectric properties in high quality stoichiometric single-crystals of magnetite $(Fe_3O_4)$. At low temperatures, below the Verwey transition, both ac susceptibility and ac permittivity reveal similar relaxation processes. We discuss these effects in connection with domain structure and variable range hopping mechanism of electrical conductivity.
Źródło:: Acta Physica Polonica A; 2010, 118, 5; 940-941
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Contactless Estimation of Critical Current Density and Its Temperature Dependence Using Magnetic Measurements
Autorzy:: Youssef, A.
Baničová, L.
Švindrych, Z.
Janů, Z.
Powiązania:: https://bibliotekanauki.pl/articles/1535392.pdf
Data publikacji:: 2010-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 74.78.-w
74.25.Sv
Opis:: We have measured magnetic response of second-generation high temperature superconductor $YBa_2Cu_3O_{x}$ wire and Nb thin film in perpendicular ac field as a function of temperature. We compare experimental complex ac susceptibility to the calculated susceptibility based on the model of Bean's critical-state response in two-dimensional disk in perpendicular field. The harmonic analysis is needed for comparison between the model and the experimental data. We present a method of linking model and experimental susceptibility. Good agreement of experimental susceptibility with model susceptibility of 2D disk allows contactless estimation of critical depinning current density and its temperature dependence.
Źródło:: Acta Physica Polonica A; 2010, 118, 5; 1036-1037
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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