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Experimental study of intrinsic photocurrents in a 2D magnet

ORAL

Abstract

Crystal inversion breaking can lead to intrinsic photovoltaic responses without the need for pn junctions. These intrinsic responses can be tuned by controlling the crystal symmetry. While this effect in non-magnetic systems has been widely studied, an intriguing scenario arises when the lattice is inversion symmetric but the inversion symmetry is broken by spin structures in magnetic systems. In this case, the intrinsic photocurrent becomes strongly linked to the magnetic structure and can be controlled by magnetism. We will present our experimental findings on this effect in a 2D van der Waals magnet.

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Presenters

  • Zumeng Huang

    Boston College

Authors

  • Zumeng Huang

    Boston College

  • Mohammad Yahyavi

    Nanyang Technological University

  • Anyuan Gao

    Harvard University

  • Yufei Liu

    Harvard University

  • Tiema Qian

    Los Alamos National Lab

  • Kenji Watanabe

    National Institute for Materials Science, NIMS, Research Center for Functional Materials, National Institute for Materials Science, Research Center for Electronic and Optical Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan, Research Center for Functional Materials, National Institute of Material Science, Tsukuba, Japan, National Institute of Materials Science, Advanced Materials Laboratory, National Institute for Materials Science

  • Takashi Taniguchi

    National Institute for Materials Science, International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Research Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan, International Center for Materials Nanoarchitectonics, National Institute of Material Science, Tsukuba, Japan, Advanced Materials Laboratory, National Institute for Materials Science

  • Ni Ni

    University of California, Los Angeles

  • Su-Yang Xu

    Harvard University

  • Guoqing Chang

    Nanyang Technological University

  • Qiong Ma

    Boston College