Bogolon-mediated electron capture by impurities in hybrid Bose-Fermi systems

Abstract

We investigate the processes of electron capture by a Coulomb impurity center residing in a hybrid system consisting of spatially separated two-dimensional layers of electron and Bose-condensed dipolar exciton gases coupled via the Coulomb forces. We calculate the probability of the electron capture accompanied by the emission of a single Bogoliubov excitation (bogolon), similar to regular phonon-mediated scattering in solids. Further, we study the electron capture mediated by the emission of a pair of bogolons in a single capture event and show that these processes not only should be treated in the same order of the perturbation theory, but also they give more important contribution than single bogolon-mediated capture, in contrast with regular phonon scattering.

Paper: 5 pages, 4 figures

References in corpus (4)

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• Enhancement of Carrier Mobility in Semiconductor Nanostructures by Dielectric Engineering
• High-temperature superfuidity of the two-component Bose gas in a TMDC bilayer
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Cited by in corpus (8)

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• Bogolon-mediated electron scattering in graphene in hybrid Bose-Fermi systems
• Strong-coupling theory of condensate-mediated superconductivity in 2D materials
• Photoinduced electric currents in Bose-Einstein condensates
• Impurity-band optical transitions in two-dimensional Dirac materials under strain-induced synthetic magnetic field