Electronic Noise in Graphene from First Principles

Ab-initio studies of electronic fluctuations and transport phenomena in graphene and other emerging 2D materials are limited. Here, we investigate electronic fluctuations in graphene from first-principles calculations based on a recently developed numerical technique (DOI: 10.1103/PhysRevMaterials.5.044603). Electron-phonon scattering rates are obtained from PERTURBO (https://doi.org/10.1016/j.cpc.2021.107970). We report transverse and longitudinal noise temperatures and highlight the role of graphene’s band structure on the field dependence of these properties.