Martensitic transformation and shape memory effect in a ferromagnetic shape memory alloy:: Mn2NiGa -: art. no. 262504

被引：182

作者：

Liu, GD ^{[1
]}

Chen, JL

Liu, ZH

Dai, XF

Wu, GH

Zhang, B

Zhang, XX

机构：

[1] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100080, Peoples R China

[2] Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2005年 / 87卷 / 26期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2158507

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Heusler alloy Mn2NiGa has been developed by synthesizing a series of ferromagnetic shape memory alloys Mn25+xNi50-xGa25 (x=0-25). Mn2NiGa exhibits a martensitic transformation around room temperature with a large thermal hysteresis up to 50 K and a lattice distortion as large as 21.3% and has a quite high Curie temperature of 588 K. The martensite shows a high-saturated field up to 2 T. The excellent two-way shape memory behavior with a strain of 1.7% was observed in the single crystal Mn2NiGa. The magnetic-field-controlled effect created a total strain up to 4.0% and changed the sign of the shape deformation effectively. (c) 2005 American Institute of Physics.

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页码：1 / 3

页数：3

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