Magneto-mechanical coupling effect in amorphous Co40Fe40B20 films grown on flexible substrates

被引：64
作者：
Tang, Zhenhua [1 ,2 ,3 ]
Wang, Baomin [2 ,3 ]
Yang, Huali [2 ,3 ]
Xu, Xinyu [1 ]
Liu, Yiwei [2 ,3 ]
Sun, Dandan [2 ,3 ]
Xia, Lixiang [2 ,3 ]
Zhan, Qingfeng [2 ,3 ]
Chen, Bin [2 ,3 ]
Tang, Minghua [1 ]
Zhou, Yichun [1 ]
Wang, Junling [2 ,3 ,4 ]
Li, Run-Wei [2 ,3 ]
机构：
[1] Xiangtan Univ, Key Lab Low Dimens Mat & Applicat Technol, Minist Educ, Xiangtan 411105, Hunan, Peoples R China
[2] Chinese Acad Sci, Key Lab Magnet Mat & Devices, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China
[3] Chinese Acad Sci, Lab Magnet Mat & Applicat Technol, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China
[4] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore
来源：
APPLIED PHYSICS LETTERS | 2014年 / 105卷 / 10期
基金：
中国国家自然科学基金;
关键词：
ELECTRONIC SKIN; MAGNETORESISTANCE; MAGNETOSTRICTION; JUNCTION; STRESS; GMR;
D O I：
10.1063/1.4895628
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The magneto-mechanical coupling effect of amorphous Co40Fe40B20 (CoFeB) films (10-200 nm) on flexible polyethylene terephthalate substrates were investigated in detail. The normalized remanent magnetization (M-r/M-s) of CoFeB films changes significantly (up to 62%) under small tensile or compressive strain. Moreover, the thickness dependence of the magneto-mechanical coupling effect for the flexible CoFeB films was demonstrated. These results provide important information for the development of CoFeB-based magnetic tunnel junction used in flexible spintronic devices. (C) 2014 AIP Publishing LLC.
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页数：5
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