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Tetrahedral triple-Q magnetic ordering and large spontaneous Hall conductivity in the metallic triangular antiferromagnet Co1/3TaS2.
Park, Pyeongjae; Cho, Woonghee; Kim, Chaebin; An, Yeochan; Kang, Yoon-Gu; Avdeev, Maxim; Sibille, Romain; Iida, Kazuki; Kajimoto, Ryoichi; Lee, Ki Hoon; Ju, Woori; Cho, En-Jin; Noh, Han-Jin; Han, Myung Joon; Zhang, Shang-Shun; Batista, Cristian D; Park, Je-Geun.
Affiliation
  • Park P; Center for Quantum Materials, Seoul National University, Seoul, 08826, Republic of Korea.
  • Cho W; Department of Physics & Astronomy, Seoul National University, Seoul, 08826, Republic of Korea.
  • Kim C; Center for Quantum Materials, Seoul National University, Seoul, 08826, Republic of Korea.
  • An Y; Department of Physics & Astronomy, Seoul National University, Seoul, 08826, Republic of Korea.
  • Kang YG; Center for Quantum Materials, Seoul National University, Seoul, 08826, Republic of Korea.
  • Avdeev M; Department of Physics & Astronomy, Seoul National University, Seoul, 08826, Republic of Korea.
  • Sibille R; Center for Quantum Materials, Seoul National University, Seoul, 08826, Republic of Korea.
  • Iida K; Department of Physics & Astronomy, Seoul National University, Seoul, 08826, Republic of Korea.
  • Kajimoto R; Department of Physics, KAIST, Daejeon, 34141, Republic of Korea.
  • Lee KH; Australian Nuclear Science and Technology Organisation (ANSTO), New Illawarra Road, Lucas Heights, NSW, 2234, Australia.
  • Ju W; School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia.
  • Cho EJ; Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, 5232, Villigen, Switzerland.
  • Noh HJ; Comprehensive Research Organization for Science and Society (CROSS), Tokai, Ibaraki, 319-1106, Japan.
  • Han MJ; Materials and Life Science Division, J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki, 319-1195, Japan.
  • Zhang SS; Department of Physics, Incheon National University, Incheon, 22012, Republic of Korea.
  • Batista CD; Department of Physics, Chonnam National University, Gwangju, 61186, Republic of Korea.
  • Park JG; Department of Physics, Chonnam National University, Gwangju, 61186, Republic of Korea.
Nat Commun ; 14(1): 8346, 2023 Dec 15.
Article in En | MEDLINE | ID: mdl-38102124
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.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Nat Commun Journal subject: BIOLOGIA / CIENCIA Year: 2023 Type: Article
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Nat Commun Journal subject: BIOLOGIA / CIENCIA Year: 2023 Type: Article