Corpus ID: 236034340

Strain-induced large injection current in twisted bilayer graphene

@inproceedings{Arora2021StraininducedLI,
  title={Strain-induced large injection current in twisted bilayer graphene},
  author={Arpit Arora and Jiantao Kong and Justin C W Song},
  year={2021}
}
The electronic wavefunctions in moiré materials are highly sensitive to the details of the local atomic configuration enabling Bloch band geometry and topology to be controlled by stacking and strain. Here we predict that large injection currents (under circular polarized irradiation) can develop in strained twisted bilayer graphene (TBG) heterostructures with broken sublattice symmetry; such bulk photovoltaic currents flow even in the absence of a p-n junction and can be controlled by the… Expand
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Shift-current response as a probe of quantum geometry and electron-electron interactions in twisted bilayer graphene
Moiré materials, and in particular twisted bilayer graphene (TBG), exhibit a range of fascinating phenomena, that emerge from the interplay of band topology and interactions. We show that theExpand

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