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Magnetic Phase Diagram of Non-Collinear Antiferromagnetic Weyl Metal Mn<sub>3+<i>x</i></sub>Sn<sub>1-<i>x</i></sub>

ORAL

Abstract

The non-collinear antiferromagnet Mn3Sn shows large spontaneous time-reversal odd responses [1-4] in the inverse triangular spin structure state, which are considered to be signatures of Weyl nodes near the Fermi energy [5]. Mn3Sn single crystals are known to be stable in the presence of excess manganese atoms. Depending on the composition, three distinct magnetic phases can be realized as a function of temperature, namely the high temperature triangular spin structure phase (q =0), the intermediate-temperature helical phase (q ≠ 0), and the low-temperature cluster spin glass phase [7]. Here we present our study on the compositional dependence of Mn3-xSn1-x and discuss the systematic evolution of the three magnetic phases in Mn3Sn based on transport and magnetic properties.

[1] S. Nakatsuji, N. Kiyohara and T. Higo, Nature 527, 212-215 (2015).
[2] M. Ikhlas, T. Tomita, et. al., Nat. Phys. 13, 1085-1090 (2017).
[3] T. Higo, H. Man, et. al., Nat. Photonics 12, 73-78 (2018)
[4] M.-T. Suzuki, et. al., Phys. Rev. B 95, 012345 (2017).
[5] K. Kuroda, et.al., Nat. Mater. 16 (2017)

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Presenters

  • Muhammad Ikhlas

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

Authors

  • Muhammad Ikhlas

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

  • Takahiro Tomita

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

  • Satoru Nakatsuji

    Univ of Tokyo-Kashiwanoha, University of Tokyo, Institute for Solid State Physics, University of Tokyo, Institute for Solid State Physics, the University of Tokyo, Department of Physics, The University of Tokyo, Department of Physics, University of Tokyo, The Institute for Solid State Physics, The University of Tokyo, Institute for Solid State Physics, Univ of Tokyo-Kashiwanoha