Self-consistent gauge-invariant theory of the in-plane infrared response of high-Tc cuprate superconductors
Jiří Chaloupka, Dominik Munzar
DOI 10.1103/PhysRevB.76.214502 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We report on results of our theoretical study of the in-plane infrared conductivity of the high-Tc cuprate superconductors using the model where charged planar quasiparticles are coupled to spin fluctuations. The computations include both the renormalization of the quasiparticles and the corresponding modification of the current-current vertex function (vertex correction), which ensures gauge invariance of the theory and local charge conservation in the system. The incorporation of the vertex corrections leads to an increase of the total intraband optical spectral weight (SW) at finite frequencies, a SW transfer from far infrared to mid infrared, a significant reduction of the SW of the superconducting condensate, and an amplification of characteristic features in the superconducting state spectra of the inverse scattering rate 1∕τ. We also discuss the role of self-consistency and propose an interpretation of a kink occurring in the experimental low temperature spectra of 1∕τ around 1000cm−1.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2O8+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Pr2-xCexCuO4+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Doped high-Tc cuprate superconductors elucidated in the light of zeros and poles of the electronic Green’s function
similarity 0.96Shiro Sakai et al.
Source status unknown — claims are unverified
Optical model-solution to the competition between a pseudogap phase and a charge-transfer-gap phase in high-temperature cuprate superconductors
similarity 0.96Tanmoy Das et al.
Source status unknown — claims are unverified
Plane dimpling and saddle-point bifurcation in the band structures of optimally doped high-temperature superconductors: A tight-binding model
similarity 0.96O. K. Andersen et al.
Source status unknown — claims are unverified
Test of first-principle calculations of charge transfer and electron-hole distribution in oxide superconductors by precise measurements of structure factors
similarity 0.96Lijun Wu et al.
Source status unknown — claims are unverified
Magnetic-field-induced soft mode in spin-gapped high-Tc superconductors
similarity 0.96Brian M. Andersen et al.
Source status unknown — claims are unverified
Theory of ultrafast nonequilibrium dynamics in d-wave superconductors
similarity 0.96J. Unterhinninghofen et al.
Source status unknown — claims are unverified