Novel Spin and Charge Excitations and their Manipulations in Antiferromagnetic Weyl Semimetals

Presentations

• Helical magnetism in Weyl materials

  ORAL · Invited

  March 14, 2022, 3:00 PM – March 14, 2022, 3:36 PM

  Publication: [1] "Antichiral spin order its Goldstone modes and their hybridization with phonons in the topological semimetal Mn3Ge," Y. Chen, J. Gaudet, S. Dasgupta, G. G. Marcus, J. Lin, T. Chen, T. Tomita, M. Ikhlas, Y. Zhao, W. C. Chen, M. B. Stone, O. Tchernyshyov, S. Nakatsuji, C. Broholm, Phys. Rev. B 102, 054403, (2020).
  [2] Non-coplanar Itinerant Magnetism in the Weyl Semimetal Mn3Sn," Y. Chen, J. Gaudet, G. G. Marcus, T. Chen, T. Tomita, M. Ikhlas, Y. Zhao, W. C. Chen, J. Strempfer, S. Nakatsuji, C. Broholm, " unpublished (2021).
  [3] "Weyl-mediated helical magnetism in NdAlSi," J. Gaudet?, H. Y. Yang, S. Baidya, B. Lu, G. Xu, Y. Zhao?, J. A. Rodriguez-Rivera?, C. M. Hoffmann, D. E. Graf?, D. H. Torchinsky, P. Nikolic, D. Vanderbilt?, F. Tafti?, C. L. Broholm, Nature Materials (2021). https://doi.org/10.1038/s41563-021-01062-8

  Presenters

  • Collin L Broholm

    • Johns Hopkins University
    • John Hopkins University

  Authors

  • Collin L Broholm

    • Johns Hopkins University
    • John Hopkins University

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• Interplay of magnetic order and Weyl nodal structure in NdAlSi

  ORAL · Invited

  March 14, 2022, 3:36 PM – March 14, 2022, 4:12 PM

  Publication: Jonathan Gaudet, Hung-Yu Yang, Santu Baidya, Baozhu Lu, Guangyong Xu, Yang Zhao, Jose A. Rodriguez, Christina M. Hoffman, David E. Graf, Darius H. Torchinsky, Predrag Nikoli\'c, David Vanderbilt, Fazel Tafti, and Collin L. Broholm, ``Weyl mediated helical magnetism in NdAlSi,'' Nat. Mater. (2021). https://doi.org/10.1038/s41563-021-01062-8.

  Presenters

  • David Vanderbilt

    • Rutgers University
    • Rutgers University, New Brunswick

  Authors

  • David Vanderbilt

    • Rutgers University
    • Rutgers University, New Brunswick

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• Electrical manipulation and ultrafast dynamics of cluster magnetic octupole in the chiral antiferromagnet Mn₃Sn

  ORAL · Invited

  March 14, 2022, 4:12 PM – March 14, 2022, 4:48 PM

  Publication: H. Tsai et al., Nature 580, 608 (2020).
  S. Miwa et al., Small Sci. 1, 2000062 (2021).
  H. Tsai et al., Small Sci. 1, 2000025 (2021).
  T. Nakano et al., Phys. Rev. Applied 5, 054402 (2021).
  S. Sakamoto et al., Phys. Rev. B 104, 134431 (2021).

  Presenters

  • Shinji Miwa

    • Univ of Tokyo
    • ISSP, Univ of Tokyo

  Authors

  • Shinji Miwa

    • Univ of Tokyo
    • ISSP, Univ of Tokyo

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• Chiral-spin rotation in non-collinear antiferromagneticMn₃Sn deiven by spin-orbit torque

  ORAL · Invited

  March 14, 2022, 4:48 PM – March 14, 2022, 5:24 PM

  Publication: Y. Takeuchi et al., Nature Materials 20, 1364 (2021).
  J.-Y. Yoon et al., Appl. Phys. Express 13, 013001 (2019)
  J.-Y. Yoon et al. AIP Adv. 11, 065318 (2021).

  Presenters

  • Shunsuke Fukami

    • Tohoku University

  Authors

  • Shunsuke Fukami

    • Tohoku University

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• Giant field-like torque by the out-of-plane magnetic spin Hall effect in a topological antiferromagnet Mn3Sn

  ORAL · Invited

  March 14, 2022, 5:24 PM – March 14, 2022, 6:00 PM

  Publication: [1] M. Kimata et al., Nature 565, 627 (2019).
  [2] S. Nakatsuji, N. Kiyohara, and T. Higo, Nature 527, 212 (2015).
  [3] H. Tsai et al., Nature 580, 608 (2020).
  [4] K. Kondou et al., Nature Communications (2021).

  Presenters

  • Kondou Kouta

    • RIKEN

  Authors

  • Kondou Kouta

    • RIKEN

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