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Tetrahedral triple-Q magnetic ordering and large spontaneous Hall conductivity in the metallic triangular antiferromagnet Co1/3TaS2

Author

Listed:
  • Pyeongjae Park

    (Seoul National University
    Seoul National University)

  • Woonghee Cho

    (Seoul National University
    Seoul National University)

  • Chaebin Kim

    (Seoul National University
    Seoul National University)

  • Yeochan An

    (Seoul National University
    Seoul National University)

  • Yoon-Gu Kang

    (KAIST)

  • Maxim Avdeev

    (Australian Nuclear Science and Technology Organisation (ANSTO)
    The University of Sydney)

  • Romain Sibille

    (Paul Scherrer Institut)

  • Kazuki Iida

    (Comprehensive Research Organization for Science and Society (CROSS))

  • Ryoichi Kajimoto

    (J-PARC Center, Japan Atomic Energy Agency)

  • Ki Hoon Lee

    (Incheon National University)

  • Woori Ju

    (Chonnam National University)

  • En-Jin Cho

    (Chonnam National University)

  • Han-Jin Noh

    (Chonnam National University)

  • Myung Joon Han

    (KAIST)

  • Shang-Shun Zhang

    (University of Minnesota)

  • Cristian D. Batista

    (The University of Tennessee
    Quantum Condensed Matter Division and Shull-Wollan Center, Oak Ridge National Laboratory)

  • Je-Geun Park

    (Seoul National University
    Seoul National University
    Seoul National University)

Abstract

The triangular lattice antiferromagnet (TLAF) has been the standard paradigm of frustrated magnetism for several decades. The most common magnetic ordering in insulating TLAFs is the 120° structure. However, a new triple-Q chiral ordering can emerge in metallic TLAFs, representing the short wavelength limit of magnetic skyrmion crystals. We report the metallic TLAF Co1/3TaS2 as the first example of tetrahedral triple-Q magnetic ordering with the associated topological Hall effect (non-zero σxy(H = 0)). We also present a theoretical framework that describes the emergence of this magnetic ground state, which is further supported by the electronic structure measured by angle-resolved photoemission spectroscopy. Additionally, our measurements of the inelastic neutron scattering cross section are consistent with the calculated dynamical structure factor of the tetrahedral triple-Q state.

Suggested Citation

  • Pyeongjae Park & Woonghee Cho & Chaebin Kim & Yeochan An & Yoon-Gu Kang & Maxim Avdeev & Romain Sibille & Kazuki Iida & Ryoichi Kajimoto & Ki Hoon Lee & Woori Ju & En-Jin Cho & Han-Jin Noh & Myung Joo, 2023. "Tetrahedral triple-Q magnetic ordering and large spontaneous Hall conductivity in the metallic triangular antiferromagnet Co1/3TaS2," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-43853-4
    DOI: 10.1038/s41467-023-43853-4
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    References listed on IDEAS

    as
    1. Nirmal J. Ghimire & A. S. Botana & J. S. Jiang & Junjie Zhang & Y.-S. Chen & J. F. Mitchell, 2018. "Large anomalous Hall effect in the chiral-lattice antiferromagnet CoNb3S6," Nature Communications, Nature, vol. 9(1), pages 1-6, December.
    2. X. Z. Yu & Y. Onose & N. Kanazawa & J. H. Park & J. H. Han & Y. Matsui & N. Nagaosa & Y. Tokura, 2010. "Real-space observation of a two-dimensional skyrmion crystal," Nature, Nature, vol. 465(7300), pages 901-904, June.
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