Temat: 77.80.Bg - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Dielectric Properties of SbSI in the Temperature Range of 292-475 K
Autorzy:: Starczewska, A.
Solecka, B.
Nowak, M.
Szperlich, P.
Powiązania:: https://bibliotekanauki.pl/articles/1376063.pdf
Data publikacji:: 2014-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 77.80.Bg
78.40.Fy
Opis:: Methodology of impedance measurements and ferroelectric hysteresis loops observed in temperature range 292-475 K for antimony sulfoiodide (SbSI) grown from vapour phase are discussed. Temperature dependences of spontaneous polarization and coercive field of SbSI crystals are presented.
Źródło:: Acta Physica Polonica A; 2014, 126, 5; 1125-1127
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Andreev Reflection Spectroscopy Study of Spin Polarization in Co₂Cr(Fe)Al Heusler Alloys
Autorzy:: Hašková, V.
Szabó, P.
Kováč, J.
Ryba, T.
Vargová, Z.
Varga, R.
Powiązania:: https://bibliotekanauki.pl/articles/1385695.pdf
Data publikacji:: 2015-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 72.25.Ba
74.45.+c
77.80.bg
Opis:: The present paper is dealing with the experimental study of the influence of Fe substitution on the Curie temperature and spin polarization in Co₂CrAl Heusler alloys. A recently successfully introduced new rapid quenching method has been used for the preparation of Co₂CrAl and $Co₂Cr_{0.6}Fe_{0.4}Al$ ribbon samples. The Curie temperatures have been determined from magnetization measurements being 378 K for Co₂CrAl and much above 400 K for $Co₂Cr_{0.6}Fe_{0.4}Al$. The spin polarization parameter P₀ of the studied samples has been estimated from point-contact Andreev reflexion spectroscopy measurements. In pure Co₂CrAlP₀ = 0.5 - 0.9, and in the case of $Co₂Cr_{0.6}Fe_{0.4}AlP₀$ = 0.4 - 0.9. Hence, it is shown that Fe substitution of Cr in $Co₂Cr_{1-x}FeₓAl$ Heusler alloys at a concentration of x=0.4 significantly increase the Curie temperature without marked influence on the spin polarization.
Źródło:: Acta Physica Polonica A; 2015, 127, 2; 377-378
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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