Anomalous magnetization of the chiral antiferromagnet Mn3Sn

ORAL

Abstract

Recent experiments have revealed a large anomalous Hall effect at room temperature in Mn3Sn [1]. According to the first principle calculations, the large anomalous Hall effect would originate from the Berry curvature. Here, by using a scanning Hall probe microscopy, we study magnetic properties arising from the Berry curvature in Mn3Sn. We demonstrate the possibility that a boundary current circulation generated from the Berry curvature provides an orbital magnetization [2], the magnitude of which is the same order as the spin magnetization due to spin canting towards the local easy axis. [1] S. Nakatsuji, N. Kiyohara, and T. Higo, Nature 527, 212–215 (2015). [2] D. Xiao, M.-C. Chang, and Q. Niu, Rev. Mod. Phys. 82, 1959 (2010).

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Presenters

  • Masaaki Shimozawa

    Institute of Solid State Physics, University of Tokyo, ISSP, University of Tokyo

Authors

  • Masaaki Shimozawa

    Institute of Solid State Physics, University of Tokyo, ISSP, University of Tokyo

  • Kaori Sugii

    ISSP, University of Tokyo

  • Jun Kondo

    ISSP, University of Tokyo

  • Yoshitaka Suzuki

    ISSP, University of Tokyo

  • Minoru Yamashita

    Institute of Solid State Physics, University of Tokyo, ISSP, University of Tokyo

  • Taketomo Nakamura

    ISSP, University of Tokyo

  • Shingo Katsumoto

    ISSP, University of Tokyo

  • Yasuhiro Tada

    ISSP, University of Tokyo

  • Muhammad Ikhlas

    ISSP, University of Tokyo

  • Tomoya Higo

    ISSP, University of Tokyo

  • Takahiro Tomita

    ISSP, University of Tokyo

  • Satoru Nakatsuji

    Univ of Tokyo-Kashiwanoha, ISSP, University of Tokyo, Institute for Solid State Physics, Univ of Tokyo, University of Tokyo

  • Marcin Konczykowski

    Ecole Polytechnique, Laboratoire des Solides Irradiés, École Polytechnique, CNRS, CEA, Université Paris-Saclay

  • Yuji Matsuda

    Department of Physics, Kyoto Univ, Kyoto University, Department of Physics, Kyoto University, Kyoto Univ.

  • Kiyotaka Mukasa

    University of Tokyo

  • Kohei Matsuura

    University of Tokyo

  • Yuta Mizukami

    University of Tokyo

  • Takasada Shibauchi

    Department of Advanced Materials Science, University of Tokyo, University of Tokyo, Univ. Tokyo