Two-phonon scattering in graphene in the quantum Hall regime

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...

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Bibliographic Details
Main Authors: Alexeev, Arseny M., Hartmann, Richard R., Portnoi, Mikhail E.
Format: text
Published: Animo Repository 2015
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Online Access:https://animorepository.dlsu.edu.ph/faculty_research/4459
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Institution: De La Salle University
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Summary: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.