APS Logo

Observation of Spin Swapping in an Antiferromagnet

ORAL · Invited

Abstract

The transport of spin angular momentum of electrons is fundamental in condensed matter physics. Spin current phenomena, such as spin Hall and spin Seebeck effects, have been known to be essential in spintronics in recent decades. In this talk, we show the experimental evidence for swapping of spin currents, the interchange of directions of spin (magnon) flow and spin index, in a canted antiferromagnetic insulator LaFeO3 [1]. This effect enables the electrical readout of room-temperature magnetization switching in antiferromagnetic insulators, paving the way for the challenging antiferromagnetic spintronics.

–

Publication: [1] W. Lin, J. He, B. Ma, M. Matzelle, J. Xu, J. Freeland, Y. Choi, D. Haskel, B. Barbiellini, A. Bansil, G. A. Fiete, J. Zhou, and C. L. Chien. Evidence for spin swapping in an antiferromagnet. Nat. Phys. 18, 800 (2022).

Presenters

  • Weiwei Lin

    Southeast University, China

Authors

  • Weiwei Lin

    Southeast University, China

  • Jiaming He

    University of Texas at Austin

  • Bowen Ma

    The University of Hong Kong, University of Texas at Austin

  • Matthew Matzelle

    Northeastern University

  • Jinsong Xu

    Johns Hopkins University

  • John W Freeland

    Argonne National Laboratory

  • Yongseong Choi

    Argonne National Laboratory

  • Daniel Haskel

    Argonne National Laboratory, Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL, USA

  • Bernardo Barbiellini

    LUT University, LUT Univeristy

  • Arun Bansil

    Northeastern University, Northeastern University, Boston, USA

  • Gregory A Fiete

    Northeastern University, Northeastern University, Massachusetts Institute of Technology

  • Jianshi Zhou

    University of Texas at Austin, The University of Texas at Austin, University of Texas

  • C. L. Chien

    Johns Hopkins University, Willian H. Miller III Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218, USA