Effect of high magnetic field on the two-step martensitic-phase transition in Ni2MnGa

被引：38

作者：

Ma, YW ^{[1
]}

Awaji, S ^{[1
]}

Watanabe, K ^{[1
]}

Matsumoto, M ^{[1
]}

Kobayashi, N ^{[1
]}

机构：

[1] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan

来源：

APPLIED PHYSICS LETTERS | 2000年 / 76卷 / 01期

关键词：

D O I：

10.1063/1.125648

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Using a low-temperature x-ray diffraction apparatus in a high field, a systematic study was performed of the stoichiometric Ni2MnGa alloys in a wide temperature range from 10 K to room temperature and in fields up to 5 T. X-ray diffraction data at different fields clearly show the martensitic-phase transition is a two-step process. It is found that the martensitic-transition temperature T-m increases and the premartensitic-transition temperature T-p decreases with increasing magnetic fields up to 2 T, and then both remain unchanged in fields up to 5 T. (C) 2000 American Institute of Physics. [S0003-6951(00)00201-1].

引用

页码：37 / 39

页数：3

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