Magneto-mechanical coupling effect in amorphous Co40Fe40B20films grown on flexible substrates

Zhenhua Tang*, Baomin Wang, Huali Yang, Xinyu Xu, Yiwei Liu, Dandan Sun, Lixiang Xia, Qingfeng Zhan, Bin Chen, Minghua Tang, Yichun Zhou, Junling Wang, Run-Wei Li

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

64 Citations (Scopus)

Abstract

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 (Mr/Ms) 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. © 2014 AIP Publishing LLC.
Original languageEnglish
Article number103504
JournalApplied Physics Letters
Volume105
Issue number10
DOIs
Publication statusPublished - 8 Sept 2014
Externally publishedYes

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