A Simple Model for the Checkerboard Pattern of Modulated Hole Densities in Underdoped Cuprates
Strongly Correlated Electrons
2009-11-11 v2
Abstract
A simple model is proposed as a possible explanation for the checkerboard pattern of modulations in the hole density observed in recent tunneling experiments on underdoped cuprates. Two assumptions are made; first, an enhanced hole density near the acceptor dopants and secondly short range correlations in the positions of these dopants caused by their electrostatic and anisotropic elastic interactions. Together these can lead to a structure factor in qualitative agreement with experiment.
Cite
@article{arxiv.cond-mat/0509382,
title = {A Simple Model for the Checkerboard Pattern of Modulated Hole Densities in Underdoped Cuprates},
author = {T. M. Rice and Hirokazu Tsunetsugu},
journal= {arXiv preprint arXiv:cond-mat/0509382},
year = {2009}
}
Comments
4 pages, 4 figures; Fig.3 and Fig.4(c) added, typos corrected, references added