Normal state pseudogap and (\pi,0) feature in the underdoped high-T_c cuprates. A microscopical theory
Superconductivity
2009-10-31 v2
Abstract
We show that a simple 2D electron system on a square lattice with hoping between more than nearest neighbors exhibits in the presence of electron spin exchange interaction properties strikingly similar to those observed in the underdoped cuprates It is a normal state pseudogap, its behaviour with doping and T, a form of the spectrum around (0,\pi) etc. The motor is the electronic topological transition which due to two-dimensionality gets new features with respect to well-studied 3D case.
Keywords
Cite
@article{arxiv.cond-mat/9807268,
title = {Normal state pseudogap and (\pi,0) feature in the underdoped high-T_c cuprates. A microscopical theory},
author = {F. Onufrieva and P. Pfeuty},
journal= {arXiv preprint arXiv:cond-mat/9807268},
year = {2009}
}
Comments
4 pages, RevTeX, 7 EPS figures included