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Switching between Mott-Hubbard and Hund Physics in Moiré Quantum Simulators

Siheon Ryee1, Tim O Wehling1,2

  • 1I. Institute of Theoretical Physics, University of Hamburg, Notkestrasse 9, 22607Hamburg, Germany.

Nano Letters
|January 9, 2023
PubMed
Summary

Researchers demonstrate a single twisted WSe2 bilayer exhibiting both Mott-Hubbard and Hund electron correlations. Tuning parameters allows switching between these exotic quantum states, offering a new platform for quantum matter research.

Keywords:
Hund physicsMott-Hubbard physicscharge-transfer insulatordynamical mean-field theorymoiré materialsstrongly correlated electrons

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