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

Wen Zhang | Zendy; Ping Kwan Johnny Wong | Zendy; D. Zhang | Zendy; Songhu Yuan | Zendy; Zhaocong Huang | Zendy; Ya Zhai | Zendy; Jing Wu | Zendy; Yongbing Xu | Zendy

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

Author(s) -

Wen Zhang,

Ping Kwan Johnny Wong,

D. Zhang,

Songhu Yuan,

Zhaocong Huang,

Ya Zhai,

Jing Wu,

Yongbing Xu

Publication year - 2014

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4897963

Subject(s) - magnetocrystalline anisotropy , epitaxy , condensed matter physics , materials science , magnetic anisotropy , magnetic domain , anisotropy , planar , context (archaeology) , thin film , nanotechnology , magnetic field , optics , magnetization , physics , computer science , geology , paleontology , computer graphics (images) , layer (electronics) , quantum mechanics

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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