Magnetic domain structure of epitaxial Ni-Mn-Ga films

被引：11
|
作者：
Diestel, Anett [1 ,2 ]
Backen, Anja [1 ,2 ]
Neu, Volker [1 ]
Schultz, Ludwig [1 ,2 ]
Faehler, Sebastian [1 ]
机构：
[1] IFW Dresden, Inst Metall Mat, D-01171 Dresden, Germany
[2] Tech Univ Dresden, Inst Mat Sci, D-01062 Dresden, Germany
来源：
SCRIPTA MATERIALIA | 2012年 / 67卷 / 05期
关键词：
Magnetic shape memory alloy; Magnetic force microscopy (MFM); Twinning; Magnetic domains; THIN-FILMS; MARTENSITE; NI2MNGA; AUSTENITE; MEMORY;
D O I：
10.1016/j.scriptamat.2012.04.043
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
For the magnetic shape memory effect, knowledge about the interaction between martensitic and magnetic microstructure is essential. We analyzed epitaxial Ni-Mn-Ga films by atomic and magnetic force microscopy to investigate the correlation between twinned martensite variants and magnetic band-like domains. The observed domain structure differs fundamentally from the staircase-like domain pattern of bulk material. These features can be explained by the finite film thickness and can be quantitatively described by adapting the band domain model of Kittel. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：423 / 426
页数：4
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