Tuning magnetic anisotropy of amorphous CoFeB film by depositing on convex flexible substrates

Tuning magnetic anisotropy of amorphous CoFeB film by depositing on convex flexible substrates

We have investigated the magnetic properties of amorphous Co40Fe40B20 (CoFeB) thin films grown on flexible polyimide (PI) substrates, which were fixed on convex molds with different curvatures during the magnetron sputtering deposition. When the flexible substrates were changed from convex to flat s...

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Veröffentlicht in:AIP advances 2016-05, Vol.6 (5), p.056106-056106-5
Hauptverfasser: Qiao, Xinyu, Wang, Baomin, Tang, Zhenhua, Shen, Yuan, Yang, Huali, Wang, Junling, Zhan, Qingfeng, Mao, Sining, Xu, Xiaohong, Li, Run-Wei
Format: Artikel
Sprache:eng
Schlagworte:
Magnetic anisotropy
Magnetic properties
Magnetic thin films
Magnetostriction
Magnetron sputtering
Substrates
Thin films
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Zusammenfassung:We have investigated the magnetic properties of amorphous Co40Fe40B20 (CoFeB) thin films grown on flexible polyimide (PI) substrates, which were fixed on convex molds with different curvatures during the magnetron sputtering deposition. When the flexible substrates were changed from convex to flat state after fabrication, a uniaxial magnetic anisotropy was induced in the CoFeB film due to magnetostrictive effect. Furthermore, the anisotropy also depends on the thicknesses of the film and substrate. Our results demonstrate a convenient method to tune the anisotropy of magnetic thin films grown on flexible substrates.
ISSN:2158-3226
2158-3226
DOI:10.1063/1.4943153