Phase diagram of twisted bilayer MoTe2 in a magnetic field with an account for the electron-electron interaction

被引:2
|
作者
Wang, Minxuan [1 ,2 ]
Wang, Xiaoyu [1 ]
Vafek, Oskar [1 ,3 ]
机构
[1] Natl High Magnet Field Lab, Tallahassee, FL 32310 USA
[2] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
[3] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA
关键词
FRACTIONAL CHERN INSULATORS; HALL; QUANTIZATION; TOPOLOGY;
D O I
10.1103/PhysRevB.110.L201107
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We study electron-electron interaction-induced states of twisted bilayer MoTe2 in an out-of-plane magnetic field B z near one hole per moir & eacute; unit cell filling. The three-dimensional phase diagram showing the evolution of competing phases with B , interaction strength, and an out-of-plane electric field is presented at electron fillings that follow the Diophantine equation along the Chern number-sgn(B) line, that is pointing away from the charge neutral filling, where we find prominent Chern insulators consistent with the experiments. We also explain the experimental absence of prominent Chern insulators along the Chern number + sgn( B ) line.
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页数:6
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