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

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Title
Bogolon-mediated electron scattering in graphene in hybrid Bose-Fermi systems
Author(s)
Meng Sun; K. H. A. Villegas; Kovalev V.M.; I. G. Savenko
Publication Date
2019-03
Journal
PHYSICAL REVIEW B, v.99, no.11, pp.115408 -
Publisher
AMER PHYSICAL SOC
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. © 2019 American Physical Society
URI
https://pr.ibs.re.kr/handle/8788114/6003
ISSN
2469-9950
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > Journal Papers (저널논문)
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