Bogolon-mediated electron scattering in graphene in hybrid Bose-Fermi systems

Meng Sun, K. H. A. Villegas, V. M. Kovalev, and I. G. Savenko
Phys. Rev. B 99, 115408 – Published 8 March 2019

Abstract

We study electron scattering in graphene in hybrid Bose-Fermi systems. We calculate the energy-dependent electron relaxation time, accounting for the processes of emission and absorption of a Bogoliubov excitation (a bogolon). Then, using the Bloch-Grüneisen approach, we find the finite-temperature resistivity of graphene and show that its principal behavior is T4 in the limit of low temperatures and linear at high temperatures. We show that bogolon-mediated scattering can surpass the acoustic-phonon-assisted relaxation. It can be controlled by the distance between the layers and the condensate density, giving us additional degrees of freedom and a useful tool to render electron mobility by the sample design and external pump.

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  • Received 22 November 2018

DOI:https://doi.org/10.1103/PhysRevB.99.115408

©2019 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied PhysicsNonlinear DynamicsFluid Dynamics

Authors & Affiliations

Meng Sun1,2,*, K. H. A. Villegas1, V. M. Kovalev3,4, and I. G. Savenko1,2

  • 1Center for Theoretical Physics of Complex Systems, Institute for Basic Science (IBS), Daejeon 34126, Korea
  • 2Basic Science Program, Korea University of Science and Technology (UST), Daejeon 34113, Korea
  • 3A. V. Rzhanov Institute of Semiconductor Physics, Siberian Branch of Russian Academy of Sciences, Novosibirsk 630090, Russia
  • 4Department of Applied and Theoretical Physics, Novosibirsk State Technical University, Novosibirsk 630073, Russia

  • *Corresponding author: sunmeg.89@gmail.com

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Issue

Vol. 99, Iss. 11 — 15 March 2019

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