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Charge transfer in transition metal dichalcogenide superlattices and moiré quantum chemistry

ORAL

Abstract

We theoretically investigate the band structure and interaction effects in moiré superlattices of transition metal dichalcogenides and find the Mott and charge-transfer insulating phases around half filling. The charge transfer length of a charge-transfer insulator can be several nanometers, and the magnetic susceptibility of the Mott insulator is also worked out as a probe for the antiferromagnetic ground state. This highly tunable system provides an ideal platform to simulate diatomic solids under strong interactions.

Presenters

  • Yang Zhang

    Max Planck Institute for Chemical Physics of Solids, Massachusetts Institute of Technology MIT

Authors

  • Yang Zhang

    Max Planck Institute for Chemical Physics of Solids, Massachusetts Institute of Technology MIT

  • Noah Yuan

    Massachusetts Institute of Technology MIT, Massachusetts Institute of Technology

  • Liang Fu

    Massachusetts Institute of Technology, Massachusetts Institute of Technology MIT, Department of Physics, Massachusetts Institute of Technology MIT, Physics, MIT, Physics, Massachusetts Institute of Technology, MIT