Evidence for d-wave superconductivity in YBa2Cu3O7−δ from far-infrared conductivity
J. P. Carbotte, C. Jiang, D. N. Basov, T. Timusk
DOI 10.1103/PhysRevB.51.11798 · Physical Review B
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Abstract
Calculations of the far-infrared conductivity, which include inelastic as well as arbitrary amounts of elastic impurity scattering, are presented for a superconductor with nodes in the gap. The results are compared with the normal-state conductivity and with previous results for isotropic s-wave superconductors in the clean limit. The effect of adding impurity scattering is also considered, and differences and similarities between the response for s- and d-wave superconductors are noted. The results are compared with recent experimental data on a high-quality single crystal before and after radiation damage. The data are found to be inconsistent with isotropic s waves but display all the expected qualitative features for d waves.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-δ 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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