Fine Tuning of Optical Transition Energy of Twisted Bilayer Graphene via Interlayer Distance Modulation

Elena del Corro, Miriam Peña-Alvarez, Kentaro Sato, Angel Morales-Garcia, Milan Bousa, Michal Mračko, Radek Kolman, Barbara Pacakova, Ladislav Kavan, Martin Kalbac, Otakar Frank

Research output: Contribution to journalArticlepeer-review

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.
Original languageEnglish
JournalPhysical review B: Condensed matter and materials physics
DOIs
Publication statusPublished - 23 Feb 2017

Keywords

  • cond-mat.mes-hall

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