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복잡계 이론물리 연구단
복잡계 이론물리 연구단
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Unconventional Bloch-Grüneisen Scattering in Hybrid Bose-Fermi Systems

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Title
Unconventional Bloch-Grüneisen Scattering in Hybrid Bose-Fermi Systems
Author(s)
K. H. A. Villegas; Meng Sun; V. M. Kovalev; Ivan Savenko
Publication Date
2019-08
Journal
PHYSICAL REVIEW LETTERS, v.123, no.9, pp.095301 -
Publisher
AMER PHYSICAL SOC
Abstract
We report on the novel mechanism of electron scattering in hybrid Bose-Fermi systems consisting of a two-dimensional electron gas in the vicinity of an exciton condensate: We show that in certain ranges of temperatures, the bogolon-pair-mediated scattering proves to be dominating over the conventional acoustic phonon channel, over the single-bogolon scattering, and over the scattering on impurities. We develop a microscopic theory of this effect, focusing on GaAs and MoS2 materials, and we find the principal temperature dependence of resistivity, distinct from the conventional phonon-mediated processes. Further, we scrutinize parameters and suggest a way to design composite samples with predefined electron mobilities, and we propose a mechanism of electron pairing for superconductivity. © 2019 American Physical Society
URI
https://pr.ibs.re.kr/handle/8788114/6222
ISSN
0031-9007
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > Journal Papers (저널논문)
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