Doping a Wigner-Mott insulator: Exotic charge orders in transition metal dichalcogenide moiré heterobilayers

被引：5

作者：

Tan, Yuting ^{[1
,2
,3
,4
]}

Tsang, Pak Ki Henry ^{[1
,2
]}

Dobrosavljevic, Vladimir ^{[1
,2
]}

Rademaker, Louk ^{[5
]}

机构：

[1] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA

[2] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL USA

[3] Univ Maryland, Condensed Matter Theory Ctr, College Pk, MD 20742 USA

[4] Univ Maryland, Joint Quantum Inst, Dept Phys, College Pk, MD 20742 USA

[5] Univ Geneva, Dept Theoret Phys, CH-1211 Geneva, Switzerland

来源：

PHYSICAL REVIEW RESEARCH | 2023年 / 5卷 / 04期

基金：

瑞士国家科学基金会;

关键词：

COULOMB GAP; PHYSICS; STATES;

D O I：

10.1103/PhysRevResearch.5.043190

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The moire pattern induced by lattice mismatch in transition metal dichalcogenide heterobilayers causes the formation of flat bands, where interactions dominate the kinetic energy. At fractional fillings of the flat valence band, the long-range electron interactions then induce Wigner-Mott crystals. In this paper we investigate the nontrivial electronic phases appearing away from fractional fillings. Either competing phases arise that are characterized as doped Wigner-Mott charge transfer insulators, or alternatively a novel state with frozen charge order is conducting the "electron slush." We propose that an extremely spatially inhomogeneous local density of states can serve as a key signature of the electron slush.

引用

页数：13