Magnetic Anisotropy and Reversal in Epitaxial FeGa/MgO(001) Films Deposited at Oblique Incidence

Yao Zhang; Qingfeng Zhan; Zhenghu Zuo; Huali Yang; Xiaoshan Zhang; Ying Yu; Yiwei Liu; Jun Wang; Baomin Wang; Run Wei Li

doi:10.1109/TMAG.2015.2438314

Magnetic Anisotropy and Reversal in Epitaxial FeGa/MgO(001) Films Deposited at Oblique Incidence

Yao Zhang
, Qingfeng Zhan^*
, Zhenghu Zuo
, Huali Yang
, Xiaoshan Zhang
, Ying Yu
, Yiwei Liu
, Jun Wang
, Baomin Wang
, Run Wei Li

^*Corresponding author for this work

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

4 Scopus citations

Abstract

We have epitaxially deposited FeGa films onto MgO(001) substrates at an oblique angle κ varying from 0 to 45 and systematically investigated their magnetization reversal. The square and two-step hysteresis loops were observed in the samples deposited at κ = 0 and 15. The reversed two-step and three-step hysteresis loops were observed in the samples deposited at κ = 30 and 45, in which a strong uniaxial magnetic anisotropy Ku was induced by the oblique deposition. A model based on domain wall (DW) nucleation and propagation was employed to quantitatively describe the angular-dependent behaviors of FeGa epitaxial films, which indicates that, for the samples deposited with increasing κ, the 180 magnetic transitions occurring in the magnetic field orientation between 45 and 45 gradually change from the two successive 90 DW nucleations to the 180 DW nucleation.

Original language	English
Article number	7114300
Journal	IEEE Transactions on Magnetics
Volume	51
Issue number	11
DOIs	https://doi.org/10.1109/TMAG.2015.2438314
State	Published - 1 Nov 2015
Externally published	Yes

Keywords

epitaxial film
magnetic anisotropy
magnetic reversal
oblique incidence

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10.1109/TMAG.2015.2438314

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@article{1edd2263b50f4f829ac2f64d85f50dc7,

title = "Magnetic Anisotropy and Reversal in Epitaxial FeGa/MgO(001) Films Deposited at Oblique Incidence",

abstract = "We have epitaxially deposited FeGa films onto MgO(001) substrates at an oblique angle κ varying from 0 to 45 and systematically investigated their magnetization reversal. The square and two-step hysteresis loops were observed in the samples deposited at κ = 0 and 15. The reversed two-step and three-step hysteresis loops were observed in the samples deposited at κ = 30 and 45, in which a strong uniaxial magnetic anisotropy Ku was induced by the oblique deposition. A model based on domain wall (DW) nucleation and propagation was employed to quantitatively describe the angular-dependent behaviors of FeGa epitaxial films, which indicates that, for the samples deposited with increasing κ, the 180 magnetic transitions occurring in the magnetic field orientation between 45 and 45 gradually change from the two successive 90 DW nucleations to the 180 DW nucleation.",

keywords = "epitaxial film, magnetic anisotropy, magnetic reversal, oblique incidence",

author = "Yao Zhang and Qingfeng Zhan and Zhenghu Zuo and Huali Yang and Xiaoshan Zhang and Ying Yu and Yiwei Liu and Jun Wang and Baomin Wang and Li, \{Run Wei\}",

note = "Publisher Copyright: {\textcopyright} 1965-2012 IEEE.",

year = "2015",

month = nov,

day = "1",

doi = "10.1109/TMAG.2015.2438314",

language = "英语",

volume = "51",

journal = "IEEE Transactions on Magnetics",

issn = "0018-9464",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "11",

}

TY - JOUR

T1 - Magnetic Anisotropy and Reversal in Epitaxial FeGa/MgO(001) Films Deposited at Oblique Incidence

AU - Zhang, Yao

AU - Zhan, Qingfeng

AU - Zuo, Zhenghu

AU - Yang, Huali

AU - Zhang, Xiaoshan

AU - Yu, Ying

AU - Liu, Yiwei

AU - Wang, Jun

AU - Wang, Baomin

AU - Li, Run Wei

PY - 2015/11/1

Y1 - 2015/11/1

N2 - We have epitaxially deposited FeGa films onto MgO(001) substrates at an oblique angle κ varying from 0 to 45 and systematically investigated their magnetization reversal. The square and two-step hysteresis loops were observed in the samples deposited at κ = 0 and 15. The reversed two-step and three-step hysteresis loops were observed in the samples deposited at κ = 30 and 45, in which a strong uniaxial magnetic anisotropy Ku was induced by the oblique deposition. A model based on domain wall (DW) nucleation and propagation was employed to quantitatively describe the angular-dependent behaviors of FeGa epitaxial films, which indicates that, for the samples deposited with increasing κ, the 180 magnetic transitions occurring in the magnetic field orientation between 45 and 45 gradually change from the two successive 90 DW nucleations to the 180 DW nucleation.

AB - We have epitaxially deposited FeGa films onto MgO(001) substrates at an oblique angle κ varying from 0 to 45 and systematically investigated their magnetization reversal. The square and two-step hysteresis loops were observed in the samples deposited at κ = 0 and 15. The reversed two-step and three-step hysteresis loops were observed in the samples deposited at κ = 30 and 45, in which a strong uniaxial magnetic anisotropy Ku was induced by the oblique deposition. A model based on domain wall (DW) nucleation and propagation was employed to quantitatively describe the angular-dependent behaviors of FeGa epitaxial films, which indicates that, for the samples deposited with increasing κ, the 180 magnetic transitions occurring in the magnetic field orientation between 45 and 45 gradually change from the two successive 90 DW nucleations to the 180 DW nucleation.

KW - epitaxial film

KW - magnetic anisotropy

KW - magnetic reversal

KW - oblique incidence

UR - https://www.scopus.com/pages/publications/84946220051

U2 - 10.1109/TMAG.2015.2438314

DO - 10.1109/TMAG.2015.2438314

M3 - 文章

AN - SCOPUS:84946220051

SN - 0018-9464

VL - 51

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 11

M1 - 7114300

ER -

Magnetic Anisotropy and Reversal in Epitaxial FeGa/MgO(001) Films Deposited at Oblique Incidence

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Keywords

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