We report on an unconventional mechanism of electron scattering in graphene in hybrid Bose- Fermi systems. We study energy-dependent electron relaxation time, accounting for the processes of emission and absorption of a Bogoliubov excitation (a bogolon). Then using the Bloch-Gruneisen 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.
@article{arxiv.1811.09373,
title = {Bogolon-mediated electron scattering in graphene in hybrid Bose-Fermi systems},
author = {Meng Sun and K. H. A. Villegas and V. M. Kovalev and I. G. Savenko},
journal= {arXiv preprint arXiv:1811.09373},
year = {2019}
}