- Tytuł:
- Inverse magnetocaloric effect in spin-1/2 Fishers super-exchange antiferromagnet
- Autorzy:
-
Gálisová, L.
Strečka, J. - Powiązania:
- https://bibliotekanauki.pl/articles/1052954.pdf
- Data publikacji:
- 2017-04
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
05.50.+q
75.30.Et
75.30.Sg
75.30.Kz - Opis:
- The isothermal entropy change and the adiabatic temperature change are rigorously calculated for the exactly solved spin-1/2 Fisher's super-exchange antiferromagnet in order to examine magnetocaloric properties of the model in a vicinity of the second-order phase transition. It is shown that the large inverse magnetocaloric effect occurs around the temperature interval T_c(h≠0) < T < T_c(h=0) for any magnetic-field change Δh:0 → h. The most pronounced inverse magnetocaloric effect can be found for the magnetic-field change, which coincides with the critical field of a zero-temperature phase transition from the antiferromagnetically ordered ground state to the paramagnetic one.
- Źródło:
-
Acta Physica Polonica A; 2017, 131, 4; 627-629
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki