Magnetic anisotropy and highfrequency property of flexible FeCoTa films obliquely deposited on a wrinkled topography

Jincai Li; Qingfeng Zhan; Shuanglan Zhang; Jinwu Wei; Jianbo Wang; Minjie Pan; Yali Xie; Huali Yang; Zheng Zhou; Shuhong Xie; Baomin Wang; Run Wei Li

doi:10.1038/s41598-017-03288-6

Magnetic anisotropy and highfrequency property of flexible FeCoTa films obliquely deposited on a wrinkled topography

Jincai Li
, Qingfeng Zhan^*
, Shuanglan Zhang
, Jinwu Wei
, Jianbo Wang
, Minjie Pan
, Yali Xie
, Huali Yang
, Zheng Zhou
, Shuhong Xie
, Baomin Wang
, Run Wei Li

^*Corresponding author for this work

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

29 Scopus citations

Abstract

We investigated the magnetic anisotropy and the high-frequency property of flexible Fe60Co26Ta14 (FeCoTa) thin films obtained by oblique sputtering onto a wrinkled surface. The sinuously wrinkled topography is produced by growing Ta layer on a pre-strained polydimethylsiloxane (PDMS) membrane. Due to the enhanced effect of shadowing, the oblique deposition of FeCoTa layer gives rise to a shift of wrinkle peak towards the incident atomic flux. With increasing the PDMS pre-strain or increasing the oblique sputtering angle, both the uniaxial magnetic anisotropy and the ferromagnetic resonance frequency of FeCoTa films are enhanced, but the initial permeability decreases. The magnetization reversal mechanism of wrinkled FeCoTa films can be interpreted by a two-phase model composed of both coherent rotation and domain wall nucleation. With the enhancement of uniaxial magnetic anisotropy, the domain wall nucleation becomes pronounced in FeCoTa films.

Original language	English
Article number	2837
Journal	Scientific Reports
Volume	7
Issue number	1
DOIs	https://doi.org/10.1038/s41598-017-03288-6
State	Published - 1 Dec 2017
Externally published	Yes

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title = "Magnetic anisotropy and highfrequency property of flexible FeCoTa films obliquely deposited on a wrinkled topography",

abstract = "We investigated the magnetic anisotropy and the high-frequency property of flexible Fe60Co26Ta14 (FeCoTa) thin films obtained by oblique sputtering onto a wrinkled surface. The sinuously wrinkled topography is produced by growing Ta layer on a pre-strained polydimethylsiloxane (PDMS) membrane. Due to the enhanced effect of shadowing, the oblique deposition of FeCoTa layer gives rise to a shift of wrinkle peak towards the incident atomic flux. With increasing the PDMS pre-strain or increasing the oblique sputtering angle, both the uniaxial magnetic anisotropy and the ferromagnetic resonance frequency of FeCoTa films are enhanced, but the initial permeability decreases. The magnetization reversal mechanism of wrinkled FeCoTa films can be interpreted by a two-phase model composed of both coherent rotation and domain wall nucleation. With the enhancement of uniaxial magnetic anisotropy, the domain wall nucleation becomes pronounced in FeCoTa films.",

author = "Jincai Li and Qingfeng Zhan and Shuanglan Zhang and Jinwu Wei and Jianbo Wang and Minjie Pan and Yali Xie and Huali Yang and Zheng Zhou and Shuhong Xie and Baomin Wang and Li, \{Run Wei\}",

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doi = "10.1038/s41598-017-03288-6",

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TY - JOUR

T1 - Magnetic anisotropy and highfrequency property of flexible FeCoTa films obliquely deposited on a wrinkled topography

AU - Li, Jincai

AU - Zhan, Qingfeng

AU - Zhang, Shuanglan

AU - Wei, Jinwu

AU - Wang, Jianbo

AU - Pan, Minjie

AU - Xie, Yali

AU - Yang, Huali

AU - Zhou, Zheng

AU - Xie, Shuhong

AU - Wang, Baomin

AU - Li, Run Wei

PY - 2017/12/1

Y1 - 2017/12/1

N2 - We investigated the magnetic anisotropy and the high-frequency property of flexible Fe60Co26Ta14 (FeCoTa) thin films obtained by oblique sputtering onto a wrinkled surface. The sinuously wrinkled topography is produced by growing Ta layer on a pre-strained polydimethylsiloxane (PDMS) membrane. Due to the enhanced effect of shadowing, the oblique deposition of FeCoTa layer gives rise to a shift of wrinkle peak towards the incident atomic flux. With increasing the PDMS pre-strain or increasing the oblique sputtering angle, both the uniaxial magnetic anisotropy and the ferromagnetic resonance frequency of FeCoTa films are enhanced, but the initial permeability decreases. The magnetization reversal mechanism of wrinkled FeCoTa films can be interpreted by a two-phase model composed of both coherent rotation and domain wall nucleation. With the enhancement of uniaxial magnetic anisotropy, the domain wall nucleation becomes pronounced in FeCoTa films.

AB - We investigated the magnetic anisotropy and the high-frequency property of flexible Fe60Co26Ta14 (FeCoTa) thin films obtained by oblique sputtering onto a wrinkled surface. The sinuously wrinkled topography is produced by growing Ta layer on a pre-strained polydimethylsiloxane (PDMS) membrane. Due to the enhanced effect of shadowing, the oblique deposition of FeCoTa layer gives rise to a shift of wrinkle peak towards the incident atomic flux. With increasing the PDMS pre-strain or increasing the oblique sputtering angle, both the uniaxial magnetic anisotropy and the ferromagnetic resonance frequency of FeCoTa films are enhanced, but the initial permeability decreases. The magnetization reversal mechanism of wrinkled FeCoTa films can be interpreted by a two-phase model composed of both coherent rotation and domain wall nucleation. With the enhancement of uniaxial magnetic anisotropy, the domain wall nucleation becomes pronounced in FeCoTa films.

UR - https://www.scopus.com/pages/publications/85020441511

U2 - 10.1038/s41598-017-03288-6

DO - 10.1038/s41598-017-03288-6

M3 - 文章

C2 - 28588254

AN - SCOPUS:85020441511

SN - 2045-2322

VL - 7

JO - Scientific Reports

JF - Scientific Reports

IS - 1

M1 - 2837

ER -

Magnetic anisotropy and highfrequency property of flexible FeCoTa films obliquely deposited on a wrinkled topography

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