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

Ying Yu; Qingfeng Zhan; Jinwu Wei; Jianbo Wang; Guohong Dai; Zhenghu Zuo; Xiaoshan Zhang; Yiwei Liu; Huali Yang; Yao Zhang; Shuhong Xie; Baomin Wang; Run Wei Li

doi:10.1063/1.4918964

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

Ying Yu
, Qingfeng Zhan
, Jinwu Wei
, Jianbo Wang
, Guohong Dai
, Zhenghu Zuo
, Xiaoshan Zhang
, Yiwei Liu
, Huali Yang
, Yao Zhang
, Shuhong Xie
, Baomin Wang
, Run Wei Li

Research output: Contribution to journal › Article › peer-review

66 Scopus citations

Abstract

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.

Original language	English
Article number	162405
Journal	Applied Physics Letters
Volume	106
Issue number	16
DOIs	https://doi.org/10.1063/1.4918964
State	Published - 20 Apr 2015
Externally published	Yes

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10.1063/1.4918964

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@article{9b0f9a9d37f842cc81d8df0d79b5c55b,

title = "Static and high frequency magnetic properties of FeGa thin films deposited on convex flexible substrates",

abstract = "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.",

author = "Ying Yu and Qingfeng Zhan and Jinwu Wei and Jianbo Wang and Guohong Dai and Zhenghu Zuo and Xiaoshan Zhang and Yiwei Liu and Huali Yang and Yao Zhang and Shuhong Xie and Baomin Wang and Li, \{Run Wei\}",

note = "Publisher Copyright: {\textcopyright} 2015 AIP Publishing LLC.",

year = "2015",

month = apr,

day = "20",

doi = "10.1063/1.4918964",

language = "英语",

volume = "106",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "16",

}

TY - JOUR

T1 - Static and high frequency magnetic properties of FeGa thin films deposited on convex flexible substrates

AU - Yu, Ying

AU - Zhan, Qingfeng

AU - Wei, Jinwu

AU - Wang, Jianbo

AU - Dai, Guohong

AU - Zuo, Zhenghu

AU - Zhang, Xiaoshan

AU - Liu, Yiwei

AU - Yang, Huali

AU - Zhang, Yao

AU - Xie, Shuhong

AU - Wang, Baomin

AU - Li, Run Wei

PY - 2015/4/20

Y1 - 2015/4/20

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/84928474020

U2 - 10.1063/1.4918964

DO - 10.1063/1.4918964

M3 - 文章

AN - SCOPUS:84928474020

SN - 0003-6951

VL - 106

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 16

M1 - 162405

ER -

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

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