Static and high frequency magnetic properties of FeGa thin films deposited on convex flexible substrates

被引：63

作者：

Yu, Ying ^{[1
,2
,3
]}

Zhan, Qingfeng ^{[1
,2
]}

Wei, Jinwu ^{[4
]}

Wang, Jianbo ^{[4
]}

Dai, Guohong ^{[1
,2
]}

Zuo, Zhenghu ^{[1
,2
]}

Zhang, Xiaoshan ^{[1
,2
]}

Liu, Yiwei ^{[1
,2
]}

Yang, Huali ^{[1
,2
]}

Zhang, Yao ^{[1
,2
]}

Xie, Shuhong ^{[3
]}

Wang, Baomin ^{[1
,2
]}

Li, Run-Wei ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Magnet Mat & Devices, Ningbo 315201, Zhejiang, Peoples R China

[2] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Prov Key Lab Magnet Mat & Applicat Techn, Ningbo 315201, Zhejiang, Peoples R China

[3] Xiangtan Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Low Dimens Mat & Applicat Technol, Xiangtan 411105, Hunan, Peoples R China

[4] Lanzhou Univ, Minist Educ, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2015年 / 106卷 / 16期

关键词：

MULTILAYERS; ANISOTROPY;

D O I：

10.1063/1.4918964

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Magnetostrictive FeGa thin films were deposited on the bowed flexible polyethylene terephthalate (PET) substrates, which were fixed on the convex mold. A compressive stress was induced in FeGa films when the PET substrates were shaped from convex to flat. Due to the effect of magnetostriction, FeGa films exhibit an obvious in-plane uniaxial magnetic anisotropy which could be enhanced by increasing the applied pre-strains on the substrates during growth. Consequently, the ferromagnetic resonance frequency of the films was significantly increased, but the corresponding initial permeability was decreased. Moreover, the films with pre-strains less than 0.78% exhibit a working bandwidth of microwave absorption about 2 GHz. Our investigations demonstrated a convenient method via the pre-strained substrates to tune the high frequency properties of magnetic thin films which could be applied in flexible microwave devices. (C) 2015 AIP Publishing LLC.

引用

页数：4

共 36 条

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