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Normal State Correlates of Plasmon-Polaron Superconductivity in Strontium Titanate

Authors :
Edelman, Alexander
Littlewood, Peter B
Publication Year :
2021

Abstract

We analyze a minimal model of SrTiO3, such as has been historically used to analyze the superconducting state. Treating the electron-phonon and electron-electron interactions on an equal footing, we calculate the normal state properties, focusing on the spectral function. We find a density-driven crossover caused mostly by the adiabaticity of the bosonic modes, but the spectral features of our theory are dominated by coupled plasmon-phonon oscillations rather than the bare phonon features seen in experiment.<br />Comment: 5 pages, 4 figures

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.2111.03138
Document Type :
Working Paper