Tuning the magnetic anisotropy of CoFeB grown on flexible substrates

doi:10.1088/1674-1056/24/7/077501

中国物理B ›› 2015, Vol. 24 ›› Issue (7): 77501-077501.doi: 10.1088/1674-1056/24/7/077501

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇下一篇

Tuning the magnetic anisotropy of CoFeB grown on flexible substrates

张昊^a, 李媛媛^a, 杨美音^a, 张保^a, 杨光^b, 王守国^b, 王开友^a

a State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;
b State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

收稿日期:2015-02-09 修回日期:2015-04-10 出版日期:2015-07-05 发布日期:2015-07-05
基金资助:
Project supported by the National Basic Research Program of China (Grant Nos. 2011CB922201 and 2015CB921401) and the National Natural Science Foundation of China (Grant Nos. 11174272, 11474272, 11274371, 51431009, and 61225021).

Tuning the magnetic anisotropy of CoFeB grown on flexible substrates

Zhang Hao (张昊)^a, Li Yuan-Yuan (李媛媛)^a, Yang Mei-Yin (杨美音)^a, Zhang Bao (张保)^a, Yang Guang (杨光)^b, Wang Shou-Guo (王守国)^b, Wang Kai-You (王开友)^a

a State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;
b State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

Received:2015-02-09 Revised:2015-04-10 Online:2015-07-05 Published:2015-07-05
Contact: Wang Shou-Guo, Wang Kai-You E-mail:sgwang@iphy.ac.cn;kywang@semi.ac.cn
Supported by:
Project supported by the National Basic Research Program of China (Grant Nos. 2011CB922201 and 2015CB921401) and the National Natural Science Foundation of China (Grant Nos. 11174272, 11474272, 11274371, 51431009, and 61225021).

摘要/Abstract

摘要：

The magnetic properties of CoFeB thin films grown on flexible polyimide substrates were investigated using a magneto-optical Kerr effect magnetometer. In-plane uniaxial magnetic anisotropy was observed in the virgin state. The strain induced by bending the flexible substrate was applied on the sample to change the magnetic properties of CoFeB. The strain induced uniaxial magnetic anisotropy changed linearly with the deformation by about 8.41×10⁴ erg/cm³ at 1% of deformation. Our results prove the magnetic properties of CoFeB grown on flexible polyimide substrate can be tuned effectively by bending, which could be important for future flexible spintronics.

关键词: magnetic anisotropy, bending strain, magneto-optical Kerr effect magnetometer

Abstract:

Key words: magnetic anisotropy, bending strain, magneto-optical Kerr effect magnetometer

中图分类号: (Magnetic anisotropy)

75.30.Gw

75.60.Jk (Magnetization reversal mechanisms) 75.60.Ej (Magnetization curves, hysteresis, Barkhausen and related effects)

张昊, 李媛媛, 杨美音, 张保, 杨光, 王守国, 王开友. Tuning the magnetic anisotropy of CoFeB grown on flexible substrates[J]. 中国物理B, 2015, 24(7): 77501-077501.

Zhang Hao (张昊), Li Yuan-Yuan (李媛媛), Yang Mei-Yin (杨美音), Zhang Bao (张保), Yang Guang (杨光), Wang Shou-Guo (王守国), Wang Kai-You (王开友). Tuning the magnetic anisotropy of CoFeB grown on flexible substrates[J]. Chin. Phys. B, 2015, 24(7): 77501-077501.

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Tuning the magnetic anisotropy of CoFeB grown on flexible substrates

Tuning the magnetic anisotropy of CoFeB grown on flexible substrates

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