- Tytuł:
- New Materials of RMn$\text{}_{2}$Ge$\text{}_{2}$ Type for Thermomagnetic Devices
- Autorzy:
-
Markin, P. E.
Zemlyanskii, S. V.
Baranov, N. V. - Powiązania:
- https://bibliotekanauki.pl/articles/1964624.pdf
- Data publikacji:
- 1997-08
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
71.20.Lp
72.15.Jf
75.30.Gw - Opis:
- The new type of the working media for thermomagnetic devices is proposed: the intermetallic compounds which have large magnetocrystalline anisotropy and exhibit the spontaneous phase transition from the antiferromagnetic (AF) to ferromagnetic (F) state when the temperature increases above the critical value T$\text{}_{t}$. Moreover, the anisotropy in AF state in the fields below the critical AF-F transition field must be much lower than in the F state. In the present paper the Gd$\text{}_{0.6}$Sm$\text{}_{0.4}$Mn$\text{}_{2}$Ge$\text{}_{2}$ compound belonging to the tetragonal RMn$\text{}_{2}$Ge$\text{}_{2}$ system is investigated. This compound has the critical temperature T$\text{}_{t}$ = 280 K. The thermomagnetic cycle can be realized on the AF-F-AF transition near T$\text{}_{t2}$. The interval of the working temperatures can be shifted with the change of the Gd and Sm concentration.
- Źródło:
-
Acta Physica Polonica A; 1997, 92, 2; 327-330
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł