Pressure effects on magnetic properties and martensitic transformation of Ni–Mn–Sn magnetic shape memory alloys

被引：2

作者：

张雅卓 ^{[1
]}

曹伽牧 ^{[2
]}

谭昌龙 ^{[2
]}

曹一江 ^{[2
]}

蔡伟 ^{[3
]}

机构：

[1] Department of Mathematics, Harbin Institute of Technology

[2] College of Applied Science, Harbin University of Science and Technology

[3] School of Materials Science and Engineering, Harbin Institute of Technology

来源：

Chinese Physics B | 2014年 / 03期

基金：

中国国家自然科学基金;

关键词：

ferromagnetic shape memory alloys; magnetic properties; martensitic transformation; electronic band structure;

D O I：

暂无

中图分类号：

TG139.6 [];

学科分类号：

080502 ;

摘要：

The mechanism for the effects of pressure on the magnetic properties and the martensitic transformation of Ni–Mn–Sn shape memory alloys is revealed by first-principles calculations. It is found that the total energy difference between paramagnetic and ferromagnetic austenite states plays an important role in the magnetic transition of Ni–Mn–Sn under pressure. The pressure increases the relative stability of the martensite with respect to the austenite, leading to an increase of the martensitic transformation temperature. Moreover, the effects of pressure on the magnetic properties and the martensitic transformation are discussed based on the electronic structure.

引用

页码：534 / 538

页数：5

共 6 条

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