Two-phonon scattering in graphene in the quantum Hall regime
Hartmann, Richard R.
Physical Review B - Condensed Matter and Materials Physics
American Physical Society
One of the most distinctive features of graphene is its huge inter-Landau-level splitting in experimentally attainable magnetic fields which results in the room-temperature quantum Hall effect. In this paper we calculate the longitudinal conductivity induced by two-phonon scattering in graphene in a quantizing magnetic field at elevated temperatures. It is concluded that the purely phonon-induced scattering, negligible for conventional semiconductor heterostructures under quantum Hall conditions, becomes comparable to the disorder-induced contribution to the dissipative conductivity of graphene in the quantum Hall regime.
©2015 American Physical Society
Vol. 92, article 195431
Place of publication