Understanding High Tc Superconductivity
Abstract
I briefly review several key issues in understanding the cuprate superconductors from the point of view of doped-Mott-insulator. Then I present an effective low-energy theory and show that the phase diagram of such a model includes an antiferromagnetic (AF) phase, a superconducting state, and a pseudogap phase at low doping and low temperature, consistent with the experimental one. The dual topological gauge structure of this model is responsible for unifying these phases within a single framework with correct doping and temperature scales. Some unique predictions in such a model are also discussed.
Cite
@article{arxiv.cond-mat/0304261,
title = {Understanding High Tc Superconductivity},
author = {Zheng-Yu Weng},
journal= {arXiv preprint arXiv:cond-mat/0304261},
year = {2017}
}
Comments
15 pages, 3 eps figures, references updated; invited talk at the International Symposium on Frontiers of Science in celebration of the 80th birthday of Prof. Chen Ning Yang