- Tytuł:
- Effect of Si Substitution and Annealing on Magnetocaloric Properties in $TbCo_2$
- Autorzy:
-
Janatova, M.
Poltierova Vejpravova, J.
Javorsky, P.
Prokleska, J.
Svoboda, P.
Danis, S. - Powiązania:
- https://bibliotekanauki.pl/articles/1813663.pdf
- Data publikacji:
- 2008-01
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
65.40.Gd
75.30.Sg - Opis:
- We report on magnetocaloric properties of the as-cast and annealed $TbCo_2$ with partial substitution of cobalt by silicon. The samples were characterized by powder X-ray diffraction and investigated by heat capacity measurements (8-300 K, in fields 0 T and 1 T). $TbCo_2$ undergoes a second-order type phase transition at $T_C$ = 240 K, from paramagnetic to ferrimagnetic state;similar behavior was revealed in the Si-doped compounds. The temperature dependence of magnetic entropy and the corresponding magnetocaloric effect were derived for all studied samples. The influence of the heat treatment and Si doping on magnetocaloric properties will be discussed in context of the analogue case $Er(Co_{1-x}Si_x)_2$.
- Źródło:
-
Acta Physica Polonica A; 2008, 113, 1; 311-314
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł