# Phonon-mediated superconductivity in low carrier-density systems

@article{Gastiasoro2019PhononmediatedSI,
title={Phonon-mediated superconductivity in low carrier-density systems},
author={Maria N. Gastiasoro and Andrey V. Chubukov and Rafael M. Fernandes},
journal={Physical Review B},
year={2019}
}
• Published 2 January 2019
• Physics
• Physical Review B
Motivated by the observation of superconductivity in SrTiO$_3$ and Bi, we analyze phonon-mediated superconductivity in three-dimensional systems at low carrier density, when the chemical potential $\mu$ (equal to Fermi energy at $T=0$) is comparable to or even smaller than the characteristic phonon frequency $\omega_L$. We consider the attractive part of the Bardeen-Pines pairing interaction, in which the frequency-dependent electron-phonon interaction is dressed by the Coulomb potential. This…

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