TY - JOUR
T1 - Quantum Phases of Transition Metal Dichalcogenide Moiré Systems
AU - Zhou, Yiqing
AU - Sheng, D. N.
AU - Kim, Eun Ah
N1 - Publisher Copyright:
© 2022 American Physical Society.
PY - 2022/4/15
Y1 - 2022/4/15
N2 - Moiré systems provide a rich platform for studies of strong correlation physics. Recent experiments on heterobilayer transition metal dichalcogenide Moiré systems are exciting in that they manifest a relatively simple model system of an extended Hubbard model on a triangular lattice. Inspired by the prospect of the hetero-transition metal dichalcogenide Moiré system's potential as a solid-state-based quantum simulator, we explore the extended Hubbard model on the triangular lattice using the density matrix renormalization group. Specifically, we explore the two-dimensional phase space spanned by the key tuning parameters in the extended Hubbard model, namely, the kinetic energy strength and the further-range Coulomb interaction strengths. We find competition between Fermi fluid, chiral spin liquid, spin density wave, and charge order. In particular, our finding of the optimal further-range interaction for the chiral correlation presents a tantalizing possibility.
AB - Moiré systems provide a rich platform for studies of strong correlation physics. Recent experiments on heterobilayer transition metal dichalcogenide Moiré systems are exciting in that they manifest a relatively simple model system of an extended Hubbard model on a triangular lattice. Inspired by the prospect of the hetero-transition metal dichalcogenide Moiré system's potential as a solid-state-based quantum simulator, we explore the extended Hubbard model on the triangular lattice using the density matrix renormalization group. Specifically, we explore the two-dimensional phase space spanned by the key tuning parameters in the extended Hubbard model, namely, the kinetic energy strength and the further-range Coulomb interaction strengths. We find competition between Fermi fluid, chiral spin liquid, spin density wave, and charge order. In particular, our finding of the optimal further-range interaction for the chiral correlation presents a tantalizing possibility.
UR - http://www.scopus.com/inward/record.url?scp=85128867309&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.128.157602
DO - 10.1103/PhysRevLett.128.157602
M3 - Article
C2 - 35499883
AN - SCOPUS:85128867309
SN - 0031-9007
VL - 128
JO - Physical Review Letters
JF - Physical Review Letters
IS - 15
M1 - 157602
ER -