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

    Research output: Contribution to journalArticleAcademicpeer-review

    2 Citations (Scopus)
    67 Downloads (Pure)

    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 languageEnglish
    Article number107111
    Number of pages7
    JournalAIP advances
    Volume4
    DOIs
    Publication statusPublished - 2014

    Keywords

    • METIS-317802
    • IR-101226

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