Chiral domain topology, Moiré patterns, and magnetism in M<sub>1/3</sub>Nb(Ta)S(Se)<sub>2</sub> (M=transition metals)

ORAL

Abstract

Transition metal dichalcogenides (TMDs) have been extensively investigated as 2D materials last decade. A large amount of transition metals can be intercalated into the van der Waals gaps of a wider range of TMD materials, but a limited studies have been recently reported in intercalated TMDs. The limited examples include FexTaS2 crystals with x=1/4 and 1/3, which exhibit intriguing configurations of antiphase and/or chiral domains related to ordering of intercalated M ions with 2a×2a and √3a×√3a superstructures, respectively. In addition, Cr1/3NbS2 undergoes helical spin order below 133 K, and shows an interesting solitonic behavior when in-plane magnetic fields are applied in the helical spin state. We have explored a series of chiral M1/3Ta(Nb)S(Se)2 (M=transition metals) to investigate the correlation among crystallographic and magnetic domain topologies and their physical properties. These results as well as Moiré patterns with self-twisted TMDs induced by intercalation will be discussed.

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Presenters

  • Sang-Wook Cheong

    • Rutgers University
    • Department of Physics and Astronomy, Rutgers University
    • Rutgers University, New Brunswick
    • Rutgers Center for Emergent Materials and Department of Physics & Astronomy, Rutgers University
    • Center for Quantum Materials Synthesis and Department of Physics and Astronomy, Rutgers, the State University of New Jersey
    • Department of Physics, Rutgers University
    • Rutgers Center for Emergent Materials and Department of Physics and Astronomy, Rutgers University, Piscataway, NJ
    • Department of Physics and Astronomy, Rutgers University, Piscataway, NJ 08854, USA
    • Physics, Rutgers University
    • Physics and Astronomy, Rutgers University, New Brunswick
    • Department of Physics and Astronomy, Rutgers University, New Jersey
    • Rutgers University, Physics and Astronomy, and Laboratory for Pohang Emergent Materials and Max Plank POSTECH Center for Complex Phase Materials, Pohang University of Science
    • RCEM, Department of Physics and Astronomy, Rutgers U.
    • Rutgers Center for Emergent Materials and Department of Physics and Astronomy, Rutgers University
    • Department of Physics and Astronomy, 136 Frelinghuysen Road, Piscataway, New Jersey 08854, USA, Rutgers Center for Emergent Materials

Authors

  • Sang-Wook Cheong

    • Rutgers University
    • Department of Physics and Astronomy, Rutgers University
    • Rutgers University, New Brunswick
    • Rutgers Center for Emergent Materials and Department of Physics & Astronomy, Rutgers University
    • Center for Quantum Materials Synthesis and Department of Physics and Astronomy, Rutgers, the State University of New Jersey
    • Department of Physics, Rutgers University
    • Rutgers Center for Emergent Materials and Department of Physics and Astronomy, Rutgers University, Piscataway, NJ
    • Department of Physics and Astronomy, Rutgers University, Piscataway, NJ 08854, USA
    • Physics, Rutgers University
    • Physics and Astronomy, Rutgers University, New Brunswick
    • Department of Physics and Astronomy, Rutgers University, New Jersey
    • Rutgers University, Physics and Astronomy, and Laboratory for Pohang Emergent Materials and Max Plank POSTECH Center for Complex Phase Materials, Pohang University of Science
    • RCEM, Department of Physics and Astronomy, Rutgers U.
    • Rutgers Center for Emergent Materials and Department of Physics and Astronomy, Rutgers University
    • Department of Physics and Astronomy, 136 Frelinghuysen Road, Piscataway, New Jersey 08854, USA, Rutgers Center for Emergent Materials

  • Fei-Ting Huang

    • Department of Physics and Astronomy, Rutgers University
    • Rutgers University, New Brunswick
    • Department of Physics and Astronomy, Rutgers University, New Jersey

  • Kai Du

    • Rutgers University, New Brunswick

  • Seong Joon Lim

    • Rutgers University, New Brunswick
    • Department of Physics and Astronomy, Rutgers University, New Jersey

  • Jae-Wook Kim

    • Rutgers University, New Brunswick
    • Department of Physics and Astronomy, Rutgers University
    • Department of Physics and Astronomy, Rutgers University, New Jersey

  • Kasun Gamage

    • Central Michigan University
    • Department of Physics, Central Michigan University

  • Junjie Yang

    • Department of Physics and Science of Advanced Materials Program, Central Michigan University
    • Central Michigan University
    • Department of Physics, Central Michigan University
    • Central Michigan Univ

  • Myung-Geun Han

    • Condensed Matter Physics and Materials Science, Brookhaven National Lab
    • Brookhaven National Laboratory
    • Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory
    • 2Condensed Matter Physics and Materials Science Departement, Brookhaven National Laboratory