Magnetocaloric effect in Ni2.19Mn0.81Ga Heusler alloys

被引:19
作者
Buchelnikov, V. D. [1 ]
Taskaev, S. V.
Aliev, A. M.
Batdalov, A. B.
Gamzatov, A. M.
Korolyov, A. V.
Kourov, N. I.
Pushin, V. G.
Koledov, V. V.
Khovailo, V. V.
Shavrov, V. G.
Grechishkin, R. M.
机构
[1] Chelyabinsk State Univ, Chelyabinsk 454021, Russia
[2] RAS, Dagestan Sci Ctr, Inst Phys, Makhachkala, Russia
[3] Russian Acad Sci, Inst Met Phys, Ural Branch, Ekaterinburg 620219, Russia
[4] RAS, Inst Radioengn & Elect, Moscow 125009, Russia
[5] Tver State Univ, Tver 170000, Russia
关键词
magnetocaloric effect; ferromagnets; magnetostructural phase transition;
D O I
10.3233/JAE-2006-718
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The results of direct measurements of the magnetic field induced entropy change in the Ni2.19Mn0.81Ga alloy are presented. It is shown that the largest entropy change in the magnetic field 2.6 T is equal to 11 J/kgK. The experimental data are compared with the theoretical results, obtained with the help of the statistical and molecular field theory.
引用
收藏
页码:65 / 69
页数:5
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