Spin Transport in Multiferroic BiFeO<sub>3</sub> thin films

ORAL

Abstract

Creation, detection, manipulation of spin current are the core issues in the spintronics field. In general, spin current can be manipulated by tuning charge current. BiFeO3 is a multiferroic material, which has a strong magneto-electric coupling. We study spin-current transmission in La-doped BiFeO3 (LBFO) thin films by using a trilayer device that sandwiches a LBFO thin film between a magnetic CoFe and a strong spin orbit coupling SrRuO3 layer. Spin current transmission in LBFO thin films can be controlled by the electric field and La-doping concentration through changing antiferromagnetic spin orientation. The control of pure spin current by multiferroic materials may provide a new route towards next-generation electronics.

*This work is supported by an ARO-MURI

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Presenters

  • Hongrui Zhang

    • Department of Materials Science and Engineering, University of California, Berkeley

Authors

  • Hongrui Zhang

    • Department of Materials Science and Engineering, University of California, Berkeley

  • Xiaoxi Huang

    • Department of Materials Science and Engineering, University of California, Berkeley
    • University of California, Berkeley

  • Yen-Lin Huang

    • Lawrence Berkeley National Laboratory
    • Lawrence Berkeley National Laboratory, USA
    • Department of Materials Science and Engineering, University of California, Berkeley
    • University of California, Berkeley

  • Ramamoorthy Ramesh

    • Department of Materials Science and Engineering, UC Berkeley
    • University of California, Berkeley, USA
    • University of California, Berkeley
    • Materials Science and Engineering, University of California, Berkeley
    • Department of Materials Science and Engineering, University of California, Berkeley
    • Department of Materials Science and Engineering,, University of California, Berkeley, California 94720, USA