Interplay between BCS and Mott physics in the phenomenon of high-$T_c$ superconductivity
Abstract
Superconducting electron systems of solids hosting flat bands are studied, with a view to improved understanding of the fundamental physics giving rise to high-temperature superconductivity. We present a modified form of the set of Gor'kov equations of BCS theory that incorporates a Mott-like gap in the single-particle spectrum. Such a quantity is emergent in systems with flat bands having interactions repulsive in the Cooper channel, provided particle-hole symmetry is broken. The equations so obtained are applied to the elucidation of features of the two-gap structure of single-particle spectra of underdoped high- superconductors, as revealed in angle-resolved photoemission spectrometry.
Keywords
Cite
@article{arxiv.1607.06489,
title = {Interplay between BCS and Mott physics in the phenomenon of high-$T_c$ superconductivity},
author = {V. A. Khodel and J. W. Clark and M. V. Zverev},
journal= {arXiv preprint arXiv:1607.06489},
year = {2017}
}
Comments
The paper has been withdrawn by the author due to a crucial error in Equation 7