Carrier transport theory for twisted bilayer graphene in the metallic regime.

ABSTRACT: Understanding the normal-metal state transport in twisted bilayer graphene near magic angle is of fundamental importance as it provides insights into the mechanisms responsible for the observed strongly correlated insulating and superconducting phases. Here we provide a rigorous theory for phonon-dominated transport in twisted bilayer graphene describing its unusual signatures in the resistivity (including the variation with electron density, temperature, and twist angle) showing good quantitative agreement with recent experiments. We contrast this with the alternative Planckian dissipation mechanism that we show is incompatible with available experimental data. An accurate treatment of the electron-phonon scattering requires us to go well beyond the usual treatment, including both intraba

SUBMITTER: Sharma G 

PROVIDER: S-EPMC8484653 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature