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

Meng Sun; K. H.A. Villegas; V. M. Kovalev; I. G. Savenko

doi:10.1103/PhysRevB.99.115408

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

Meng Sun^*, K. H.A. Villegas, V. M. Kovalev, I. G. Savenko

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

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.

Original language	English
Article number	115408
Journal	Physical Review B
Volume	99
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevB.99.115408
State	Published - 8 Mar 2019
Externally published	Yes

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10.1103/PhysRevB.99.115408

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title = "Bogolon-mediated electron scattering in graphene in hybrid Bose-Fermi systems",

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-Gr{\"u}neisen 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.",

author = "Meng Sun and Villegas, {K. H.A.} and Kovalev, {V. M.} and Savenko, {I. G.}",

note = "Publisher Copyright: {\textcopyright} 2019 American Physical Society.",

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doi = "10.1103/PhysRevB.99.115408",

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AU - Sun, Meng

AU - Villegas, K. H.A.

AU - Kovalev, V. M.

AU - Savenko, I. G.

PY - 2019/3/8

Y1 - 2019/3/8

N2 - 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.

AB - 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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M3 - 文章

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VL - 99

JO - Physical Review B

JF - Physical Review B

IS - 11

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ER -

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

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