Magnetoelastic coupling effect of Fe10Co90 films grown on different flexible substrates

doi:10.1088/1674-1056/abb22d

中国物理B ›› 2020, Vol. 29 ›› Issue (11): 117501-.doi: 10.1088/1674-1056/abb22d

Jiapeng Zhao(赵佳鹏)¹, Qinhuang Guo(郭勤皇)¹, Huizhong Yin(尹慧中)¹, Jintang Zou(邹锦堂)², Zhenjie Zhao(赵振杰)², Wenjuan Cheng(程文娟)²^,†(), Dongmei Jiang(蒋冬梅)¹, Qingfeng Zhan(詹清峰)¹^,^‡()

收稿日期:2020-05-10 修回日期:2020-07-22 接受日期:2020-08-25 出版日期:2020-11-05 发布日期:2020-11-03

Magnetoelastic coupling effect of Fe₁₀Co₉₀ films grown on different flexible substrates

Jiapeng Zhao(赵佳鹏)¹, Qinhuang Guo(郭勤皇)¹, Huizhong Yin(尹慧中)¹, Jintang Zou(邹锦堂)², Zhenjie Zhao(赵振杰)², Wenjuan Cheng(程文娟)^{2, †}, Dongmei Jiang(蒋冬梅)¹, and Qingfeng Zhan(詹清峰)^{1,, ‡}

1 Key Laboratory of Polar Materials and Devices (MOE) and State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
2 Engineering Research Center for Nanophotonics and Advanced Instrument, School of Physics and Electronic Science, East China Normal University, Ministry of Education, Shanghai 200241, China

Received:2020-05-10 Revised:2020-07-22 Accepted:2020-08-25 Online:2020-11-05 Published:2020-11-03
Contact: ^†Corresponding author. E-mail: wjcheng@phy.ecnu.edu.cn ^‡Corresponding author. E-mail: qfzhan@phy.ecnu.edu.cn
Supported by:
the National Natural Science Foundation of China (Grant Nos. 11674336 and 11874150).

摘要/Abstract

Abstract:

The magneto–mechanical coupling effect and magnetic anisotropy of Fe₁₀Co₉₀ (FeCo) films deposited on silicon wafer (Si), flexible polyethylene terephthalate (PET), freestanding polydimethylsiloxane (PDMS), and pre-stretched 20% PDMS substrates were studied in detail. The loop squareness ratio M_r/M_s and the coercive H_c of the FeCo film grown on a PET substrate can be obviously tuned by applying a small tensile-bending strain, and those of the FeCo film grown on a freestanding PDMS substrate can only be slightly changed when applying a relatively large tensile bending strain. For the FeCo film prepared on a 20% pre-stretched PDMS, a wrinkled morphology is obtained after removing the pre-strain. The wrinkled FeCo film can keep the magnetic properties unchanged when applying a relatively large tensile bending strain perpendicular to the wrinkles. This reveals that PDMS is an ideal substrate for magnetic films to realize flexible immutability. Our results may help for developing flexible magnetic devices.

Key words: flexible substrates, FeCo films, magnetic anisotropy, magneto-mechanical coupling effect

Jiapeng Zhao(赵佳鹏), Qinhuang Guo(郭勤皇), Huizhong Yin(尹慧中), Jintang Zou(邹锦堂), Zhenjie Zhao(赵振杰), Wenjuan Cheng(程文娟), Dongmei Jiang(蒋冬梅), Qingfeng Zhan(詹清峰). [J]. 中国物理B, 2020, 29(11): 117501-.

Jiapeng Zhao(赵佳鹏), Qinhuang Guo(郭勤皇), Huizhong Yin(尹慧中), Jintang Zou(邹锦堂), Zhenjie Zhao(赵振杰), Wenjuan Cheng(程文娟), Dongmei Jiang(蒋冬梅), and Qingfeng Zhan(詹清峰). Magnetoelastic coupling effect of Fe₁₀Co₉₀ films grown on different flexible substrates[J]. Chin. Phys. B, 2020, 29(11): 117501-.

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Magnetoelastic coupling effect of Fe₁₀Co₉₀ films grown on different flexible substrates

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