Fine Tuning of Optical Transition Energy of Twisted Bilayer Graphene via Interlayer Distance Modulation
arXiv:1702.00255 · doi:10.1103/PhysRevB.95.085138
Abstract
Twisted bilayer graphene (tBLG) represents a family of unique materials with optoelectronic properties tuned by the rotation angle between the two layers. The presented work shows an additional way of tweaking the electronic structure of tBLG: by modifying the interlayer distance, for example by a small uniaxial out-of-plane compression. We have focused on the optical transition energy, which shows a clear dependence on the interlayer distance, both experimentally and theoretically.
accepted to Physical Review B https://journals.aps.org/prb/accepted/dd078Y90H2517b63a1632e870189c8db652549060
References in corpus (12)
- Biased bilayer graphene: semiconductor with a gap tunable by electric field effect
- Observation of Van Hove singularities in twisted graphene layers
- The electronic properties of bilayer graphene
- Localization of Dirac electrons by Moire patterns in graphene bilayers
- Raman spectroscopy study of rotated double-layer graphene: Misorientation-angle dependence of electronic structure
- Optical Absorption in Twisted Bilayer Graphene
- Graphene bubbles on a substrate : Universal shape and van der Waals pressure
- Room-Temperature Superfluidity in Graphene Bilayers
- Tight--binding description of the quasiparticle dispersion of graphite and few--layer graphene
- Van der Waals pressure and its effect on trapped interlayer molecules
- Interaction-Enhanced Coherence Between Two-Dimensional Dirac Layers
- Graphene under direct compression: stress effects and interlayer coupling