Charge-transfer insulation in twisted bilayer graphene
The discovery of superconductivity and Mott insulation in twisted bilayer graphene has inspired this work, where we show that the correlated insulator state stems from a macroscopic charge transfer between AA and AB regions of the Moiré unit cell. We were the first to point out the importance of real-space charge transfer.
Cited 99 times.
L. Rademaker, P. Mellado
Phys. Rev. B 98, 235158 (2018)
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