Chiral domain topology, Moiré patterns, and magnetism in M1/3Nb(Ta)S(Se)2 (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