Control of Superconducting Correlations in High-Tc Cuprates

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.

4 pages, 6 eps figures

Cited by in corpus (6)

• Angle-resolved photoemission in high Tc cuprates from theoretical viewpoints
• Kinetic energy driven superconductivity and pseugogap phase in weakly doped antiferromagnets
• Quantum Mott Transition and Multi-Furcating Criticality
• Coexistence of $s$- and $d$-wave gaps due to pair-hopping and exchange interactions
• Competition between spin exchange and correlated hopping
• Theory of Electron Differentiation, Flat Dispersion and Pseudogap Phenomena