Control of Superconducting Correlations in High-Tc Cuprates
Superconductivity
2009-10-31 v1 Strongly Correlated Electrons
Abstract
A strategy to enhance d-wave superconducting correlations is proposed based on our numerical study for correlated electron models for high-Tc cuprates. We observe that the pairing is enhanced when the single-electron level around (pi,0) is close to the Fermi level E_F, while the d-wave pairing interaction itself contains elements to disfavor the pairing due to shift of the (pi,0)-level. Angle-resolved photoemission results in the cuprates are consistently explained in the presence of the d-wave pairing interaction. Our proposal is the tuning of the (pi,0)-level under the many-body effects to E_F by optimal design of band structure.
Keywords
Cite
@article{arxiv.cond-mat/9908058,
title = {Control of Superconducting Correlations in High-Tc Cuprates},
author = {Hirokazu Tsunetsugu and Masatoshi Imada},
journal= {arXiv preprint arXiv:cond-mat/9908058},
year = {2009}
}
Comments
4 pages, 6 eps figures