Two-phonon scattering in graphene in the quantum Hall regime

College

College of Science

Department/Unit

Physics

Document Type

Article

Source Title

Physical Review B - Condensed Matter and Materials Physics

Volume

92

Issue

19

Publication Date

11-30-2015

Abstract

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.

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Digitial Object Identifier (DOI)

10.1103/PhysRevB.92.195431

Disciplines

Physics

Keywords

Graphene; Quantum Hall effect

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