Properties of high-T(C) copper oxides from the nearly-free-electron model | |
Article | |
关键词: SPIN-PHONON INTERACTION; CUPRATE SUPERCONDUCTORS; TRANSITION-TEMPERATURE; | |
DOI : 10.1103/PhysRevB.76.140504 | |
来源: SCIE |
【 摘 要 】
The generic band structure of high-T(C) copper oxides is simulated by the nearly-free-electron model in two dimensions with parameters from ab-initio linear muffin-tin orbital calculations. Interaction between phonons and spin waves will cause potential modulations, and pseudogaps and the strength of the modulations, the wavelengths, and the doping are all related. A Fermi-surface arc is found for dynamic spin and phonon waves. The confinement of superconductivity between two limiting dopings can be a result of competition with the pseudogap at low doping and weak coupling at high doping.
【 授权许可】
Free