Imaginary part of the infrared conductivity of a dx2−y2 superconductor
C. Jiang, E. Schachinger, J. P. Carbotte, D. Basov, T. Timusk
DOI 10.1103/PhysRevB.54.1264 · Physical Review B
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Abstract
We give results for the effect of Born and of resonant impurity scattering on the imaginary part of the infrared conductivity σ(Ω) of a dx2−y2 superconductor. Inelastic scattering is included in our work through an electron-boson spectral density which also causes the pairing. We emphasize the product of Ω times the imaginary past of σ(Ω). Its zero frequency limit gives the penetration depth, while around twice the gap value it shows smooth behavior as is observed in YBa2Cu3O6.95, which has dx2−y2 symmetry. This is in sharp contrast to the case of an s-wave superconductor which would display a sharp characteristic dip at this energy as seen in BaKBiO. © 1996 The American Physical Society.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O6.95 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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