Magnetic anisotropies in epitaxial Fe3O4/GaAs(100) patterned structures

W. Zhang; P.K.J. Wong; D. Zhang; S.J. Yuan; Z.S. Huang; Y. Zhai; J. Wu; Y.B. Xu

doi:10.1063/1.4897963

Magnetic anisotropies in epitaxial Fe3O4/GaAs(100) patterned structures

W. Zhang, P.K.J. Wong, D. Zhang, S.J. Yuan, Z.S. Huang, Y. Zhai, J. Wu, Y.B. Xu

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Abstract

Previous studies on epitaxial Fe3O4 rings in the context of spin-transfer torque effect have revealed complicated and undesirable domain structures, attributed to the intrinsic fourfold magnetocrystalline anisotropy in the ferrite. In this Letter, we report a viable solution to this problem, utilizing a 6-nm-thick epitaxial Fe3O4 thin film on GaAs(100), where the fourfold magnetocrystalline anisotropy is negligible. We demonstrate that in the Fe3O4 planar wires patterned from our thin film, such a unique magnetic anisotropy system has been preserved, and relatively simple magnetic domain configurations compared to those previous reports can be obtained.

Original language	English
Article number	107111
Number of pages	7
Journal	AIP advances
Volume	4
DOIs	https://doi.org/10.1063/1.4897963
Publication status	Published - 2014

Keywords

METIS-317802
IR-101226

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10.1063/1.4897963

Zhang2014magneticFinal published version, 1.4 MB

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title = "Magnetic anisotropies in epitaxial Fe3O4/GaAs(100) patterned structures",

abstract = "Previous studies on epitaxial Fe3O4 rings in the context of spin-transfer torque effect have revealed complicated and undesirable domain structures, attributed to the intrinsic fourfold magnetocrystalline anisotropy in the ferrite. In this Letter, we report a viable solution to this problem, utilizing a 6-nm-thick epitaxial Fe3O4 thin film on GaAs(100), where the fourfold magnetocrystalline anisotropy is negligible. We demonstrate that in the Fe3O4 planar wires patterned from our thin film, such a unique magnetic anisotropy system has been preserved, and relatively simple magnetic domain configurations compared to those previous reports can be obtained.",

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year = "2014",

doi = "10.1063/1.4897963",

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journal = "AIP advances",

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T1 - Magnetic anisotropies in epitaxial Fe3O4/GaAs(100) patterned structures

AU - Zhang, W.

AU - Wong, P.K.J.

AU - Zhang, D.

AU - Yuan, S.J.

AU - Huang, Z.S.

AU - Zhai, Y.

AU - Wu, J.

AU - Xu, Y.B.

PY - 2014

Y1 - 2014

N2 - Previous studies on epitaxial Fe3O4 rings in the context of spin-transfer torque effect have revealed complicated and undesirable domain structures, attributed to the intrinsic fourfold magnetocrystalline anisotropy in the ferrite. In this Letter, we report a viable solution to this problem, utilizing a 6-nm-thick epitaxial Fe3O4 thin film on GaAs(100), where the fourfold magnetocrystalline anisotropy is negligible. We demonstrate that in the Fe3O4 planar wires patterned from our thin film, such a unique magnetic anisotropy system has been preserved, and relatively simple magnetic domain configurations compared to those previous reports can be obtained.

AB - Previous studies on epitaxial Fe3O4 rings in the context of spin-transfer torque effect have revealed complicated and undesirable domain structures, attributed to the intrinsic fourfold magnetocrystalline anisotropy in the ferrite. In this Letter, we report a viable solution to this problem, utilizing a 6-nm-thick epitaxial Fe3O4 thin film on GaAs(100), where the fourfold magnetocrystalline anisotropy is negligible. We demonstrate that in the Fe3O4 planar wires patterned from our thin film, such a unique magnetic anisotropy system has been preserved, and relatively simple magnetic domain configurations compared to those previous reports can be obtained.

KW - METIS-317802

KW - IR-101226

U2 - 10.1063/1.4897963

DO - 10.1063/1.4897963

M3 - Article

SN - 2158-3226

VL - 4

JO - AIP advances

JF - AIP advances

M1 - 107111

ER -

Magnetic anisotropies in epitaxial Fe3O4/GaAs(100) patterned structures

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Keywords

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