Magnetic entropy change in Ni51.5Mn22.7Ga25.8 alloy

被引：426

作者：

Hu, FX

Shen, BG

Sun, JR

机构：

[1] Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, Beijing 100080, Peoples R China

[2] Chinese Acad Sci, Ctr Condensed Matter Phys, Beijing 100080, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2000年 / 76卷 / 23期

关键词：

D O I：

10.1063/1.126677

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A considerable magnetic entropy change has been observed in Ni51.5Mn22.7Ga25.8 alloys under a field of 0.9 T. This change originates from a sharp magnetization jump which is associated with a martensitic to austenitic structure transition. The large low field entropy change and the adjustable martensic-austensic transition temperature indicate a great potential of Ni-Mn-Ga as working materials for magnetic refrigerants in a wide temperature range. (C) 2000 American Institute of Physics. [S0003-6951(00)01723-X].

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页码：3460 / 3462

页数：3

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