Magneto-mechanical coupling effect in amorphous Co40Fe40B20 films grown on flexible substrates
- 8 September 2014
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 105 (10), 103504
- https://doi.org/10.1063/1.4895628
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.Keywords
Funding Information
- National Natural Science Foundation of China (11304326, 51301191, 61274107)
- Program for Innovative Research Team of Ningbo Novel Photoelectric Materials and Devices (2011B82004)
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