Wszystkie pola: temperature dependence - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Temperature Dependence of Magnetization Damping in Heusler Alloy Films
Autorzy:: Dubowik, J.
Załęski, M.
Głowiński, H.
Gościańska, I.
Powiązania:: https://bibliotekanauki.pl/articles/1534143.pdf
Data publikacji:: 2010-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 76.50.+g
75.70.Ak
75.78.Jp
Opis:: The Gilbert damping for $Co_2CrAl (Co_2Cr_{0.3}Fe_{0.7}Al)$ and $Ni_2MnSn$ Heusler alloy films was investigated as a function of temperature. The best films reveals the Gilbert damping nearly independent of temperature. Magnetic relaxation in $Co_2CrAl$ is strongly influenced by magnetic inhomogeneities due to phase separation. The best $Ni_2MnSn$ epitaxial films have comparable Gilbert damping α of 6× $10^{-3}$ as half-metallic $Co_2Cr_{0.3}Fe_{0.7}Al$ films with α = 3 × $10^{-3}$.
Źródło:: Acta Physica Polonica A; 2010, 118, 5; 848-850
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Temperature Dependence of Magnetization Reversal of Thin Manganite Film
Autorzy:: Uspenskaya, L.
Nurgaliev, T.
Miteva, S.
Powiązania:: https://bibliotekanauki.pl/articles/1550567.pdf
Data publikacji:: 2010-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.30.Gw
75.30.Hx
75.47.Lx
75.60.Jk
75.60.Lr
75.70.Ak
75.70.Kw
Opis:: The magnetic domain structure, its transformation with temperature, and the magnetization reversal in 20 nm $La_{0.7}Sr_{0.3}MnO_{3}$ film grown on $LaAlO_{3}$ substrate by off-axis magnetron sputtering at 700°C and post-annealed at 600°C were studied in a wide temperature range. The magnetic domains with either in-plane- or out-of-plane-orientation of the vector of spontaneous magnetization were observed in the same film depending on the prehistory. The domains with the in-plane magnetization were found to be more stable. Magnetization reversal of the film was shown to occur via the nucleation and motion of 180-degree head-to-head domain walls, the number and the type of which were found to be dependent on temperature. Moreover, the transition between two magnetization reversal regimes was found at 30 K.
Źródło:: Acta Physica Polonica A; 2010, 117, 1; 207-210
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Temperature Dependence of Magnetization in Transition Metal Ultrathin Films of Various Thicknesses
Autorzy:: Świrkowicz, R.
Powiązania:: https://bibliotekanauki.pl/articles/1891839.pdf
Data publikacji:: 1991-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.70.Ak
76.80.+y
Opis:: Temperature dependence of the local magnetization in the spin-wave regime is calculated within the framework of the multiband model for ultrathin films consisting of 5, 7 and 9 monolayers. The temperature range in which the calculated results can be fitted to the Bloch T$\text{}^{3}$ $\text{}^{/}$ $\text{}^{2}$ law is found in all cases. The Bloch coefficient Bay corresponding to temperature dependence of the average film magnetization is found to be proportional to 1/D, where D is the thickness of the film. The spatial distribution of the local magnetization is obtained. The Bloch coefficient corresponding to the surface layer appears to be greater than the one corresponding to the central layer, namely B$\text{}_{s}$ > B$\text{}_{c}$. The ratio B$\text{}_{s}$/B$\text{}_{c}$ is increasing with an increase of the film thickness. The calculated results are well consistent with experimental ones obtained for ultrathin films of various thicknesses.
Źródło:: Acta Physica Polonica A; 1991, 80, 5; 689-697
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Informacja