Magnetocaloric properties of Ni2Mn1-xCuxGa

被引：241

作者：

Stadler, Shane

Khan, Mahmud

Mitchell, Joseph

Ali, Naushad

Gomes, Angelo M.

Dubenko, Igor

Takeuchi, Armando Y.

Guimaraes, Alberto P.

机构：

[1] So Illinois Univ, Dept Phys, Carbondale, IL 62901 USA

[2] Univ Fed Rio de Janeiro, Inst Fis, BR-21941972 Rio De Janeiro, Brazil

[3] Ctr Brasileiro Pesquisas Fis, BR-22290180 Rio De Janeiro, Brazil

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 19期

关键词：

D O I：

10.1063/1.2202751

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present the magnetocaloric properties of the substituted Heusler alloy Ni2Mn1-xCuxGa, which shows a maximum magnetic entropy change of Delta S-M approximate to-64 J/Kg K=-532 mJ/cm(3) K at 308 K for a magnetic field change Delta H=5 T. The dependence of Delta S-M on Delta H is approximately linear and does not reach saturation at 5 T. It is demonstrated that the temperature at which Delta S-M occurs can be tuned through subtle variations in composition.(c) 2006 American Institute of Physics.

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