Microstructural change near the martensitic transformation in a ferromagnetic shape memory alloy Ni51Fe22Ga27 studied by electron holography

被引：24

作者：

Murakami, Y ^{[1
]}

Shindo, D

Oikawa, K

Kainuma, R

Ishida, K

机构：

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

[2] Tohoku Ctr, Natl Inst Adv Ind Sci & Technol, Sendai, Miyagi 9838551, Japan

[3] Tohoku Univ, Grad Sch Engn, Dept Met, Sendai, Miyagi 9808579, Japan

来源：

APPLIED PHYSICS LETTERS | 2004年 / 85卷 / 25期

关键词：

D O I：

10.1063/1.1841471

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Temperature dependence of the magnetic microstructure in a ferromagnetic shape memory alloy Ni51Fe22Ga27 has been studied by electron holography, by which the distribution of magnetic flux is clearly imaged. Although the magnetic flux is quite even in the parent phase near room temperature, it undergoes considerable modulation when the temperature approaches M-s (martensitic transformation start temperature). The magnetization distribution in the martensite appears to be inherited from that in the parent phase. The observations shed further light on the precursor phenomenon of martensitic transformations. (C) 2004 American Institute of Physics.

引用

页码：6170 / 6172

页数：3

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