Coupling between electrons and optical phonons in suspended bilayer graphene

Abstract

The electron-phonon scattering dominated heat dissipation is difficult to observe in graphene due to the role of impurities in scattering processes. Owing to the suppression of flexural-mode-induced supercollisions in suspended bilayer graphene, the authors of this paper are able to demonstrate that the intrinsic electron-optical phonon coupling governs the heat flow in suspended bilayer graphene samples.