Phase Fluctuations and Spectral Properties of Underdoped Cuprates
Superconductivity
2007-05-23 v2 Strongly Correlated Electrons
Abstract
We consider the effect of classical phase fluctuations on the quasiparticle spectra of underdoped high- cuprate superconductors in the pseudogap regime above . We show that photoemission and tunneling spectroscopy data are well accounted for by a simple model in which mean field d-wave quasiparticles are semiclasically coupled to supercurrents induced by fluctuating unbound vortex-antivortex pairs. We argue that the data imply that transverse phase fluctuations are important at temperatures above , while longitudinal fluctuations are unimportant at all temperatures.
Keywords
Cite
@article{arxiv.cond-mat/9805401,
title = {Phase Fluctuations and Spectral Properties of Underdoped Cuprates},
author = {M. Franz and A. J. Millis},
journal= {arXiv preprint arXiv:cond-mat/9805401},
year = {2007}
}
Comments
8 pages REVTeX, 3 figures included. Final version to appear in Dec. 1 PRB; extensive discussion of the validity of the model and other clarifying remarks added