- Tytuł:
- Spin-Wave Resonance in Magnetic Semiconductor Thin Films - Experiment
- Autorzy:
-
Maksymowicz, L. J.
Lubecka, M.
Powroźnik, W. - Powiązania:
- https://bibliotekanauki.pl/articles/1891787.pdf
- Data publikacji:
- 1991-11
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
73.60.Gx
75.70.Ak - Opis:
- Magnetic properties of polycrystalline thin films of chromium chalcogenide spinels (CdCr$\text{}_{2}$Se$\text{}_{4}$ lightly doped with indium and CdCr$\text{}_{2x}$In$\text{}_{2-2x}$Se$\text{}_{4}$) were studied. The ferromagnetic (FMR) and spin-wave resonance (SWR) techniques were used to investigate the temperature dependences of both the spin-wave stiffness constant D and the saturation magnetization M$\text{}_{s}$. The resonance spectra were recorded in the temperature range extending from 4.2 K to 300 K. The influence of indium concentration on M$\text{}_{s}$(T) and D(T) was studied. It was shown that lightly doped samples (In/Cd < 1% at.) exhibited the ferromagnetic ordering with M$\text{}_{s}$(T) and D(T) being the linear functions of T$\text{}^{3}$ $\text{}^{/}$ $\text{}^{2}$ and T$\text{}^{5}$ $\text{}^{/}$ $\text{}^{2}$, respectively. Higher concentration of indium produced the reentrant transition and spin-glass state of magnetic ordering in CdCr$\text{}_{2x}$In$\text{}_{2-2x}$Se$\text{}_{4}$. The temperature dependence of M$\text{}_{s}$ was also found from the FMR data for these two magnetic phases.
- Źródło:
-
Acta Physica Polonica A; 1991, 80, 5; 653-664
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł