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arXiv · 1902.01214

Unconventional Bloch-Gr\"{u}neisen scattering in hybrid Bose-Fermi systems

Kristian Hauser A. Villegas·Meng Sun·Vadim M. Kovalev·Ivan G. Savenko
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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 a pair-of-bogolons--mediated scattering proves to be dominating over the conventional acoustic phonon channel and over the single-bogolon scattering, even if the screening is taken into account. We develop a microscopic theory of this effect, focusing on GaAs and MoS$_2$ materials, and 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 propose a mechanism of electron pairing for superconductivity.

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Kristian Hauser A. Villegas, Meng Sun, Vadim M. Kovalev, Ivan G. Savenko. 2019-01-31. Unconventional Bloch-Gr\"{u}neisen scattering in hybrid Bose-Fermi systems. https://doi.org/10.1103/physrevlett.123.095301

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