Magnetocaloric properties of fe and ge doped Ni2Mn1-xCuxGa

被引：8
|
作者：
Khan, Mahmud [1 ]
Stadler, Shane [1 ]
Ali, Naushad [1 ]
机构：
[1] So Illinois Univ, Dept Phys, Carbondale, IL 62901 USA
来源：
JOURNAL OF APPLIED PHYSICS | 2007年 / 101卷 / 09期
关键词：
D O I：
10.1063/1.2712304
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The magnetocaloric properties of Fe and Ge doped Ni2Mn0.75Cu0.25Ga Heusler alloys have been investigated. Using Ni2Mn0.75Cu0.25Ga as the parent material, the Fe doped system (Ni2Mn1-x(Cu-Fe)(x)Ga) and a Ge doped system (Ni2Mn1-xCuxGa1-xGex) were studied. The manipulation of the Mn-Cu subsystem with Fe doping results in a decrease of the first order magnetostructural transition temperature, whereas the substitution of Ge for the Mn-Cu-Ga subsystems results in an increase of the magnetostructural transition temperature. In both cases the giant magnetocaloric effect is successfully preserved.
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页数：3
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