Checkerboard density of states in strong-coupling superconductors
Superconductivity
2007-05-23 v1 Strongly Correlated Electrons
Abstract
The Bogoliubov-de Gennes (BdG) equations are solved in the strong-coupling limit, where real-space (preformed) pairs bose-condense with finite center-of-mass momenta. There are two energy scales in this regime, a temperature independent incoherent gap and a temperature dependent coherent gap , modulated in real space. The single-particle density of states (DOS) reveals checkerboard modulations similar to the tunnelling DOS in cuprates.
Keywords
Cite
@article{arxiv.cond-mat/0407401,
title = {Checkerboard density of states in strong-coupling superconductors},
author = {A. S. Alexandrov},
journal= {arXiv preprint arXiv:cond-mat/0407401},
year = {2007}
}
Comments
4 pages, 1 figure