Low-frequency optical conductivity in inhomogeneous d-wave superconductors
Jung Hoon Han
DOI 10.1103/PhysRevB.66.054517 · Physical Review B
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Abstract
Motivated by the recent optical conductivity experiments on Bi2Sr2CaCu2O8+δ films, we examine the possible origin of low-frequency dissipation in the superconducting state. In the presence of spatial inhomogeneity of the local phase stiffness ρs, it is shown that some spectral weight is removed from ω=0 to finite frequencies and contribute to dissipation. A case where both ρs and the local normal-fluid density are inhomogeneous is also considered. We find an enhanced dissipation at low frequency if the two variations are anticorrelated.
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 |
| Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 85 | Pressure not reported | unknown |
| Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 51 | Pressure not reported | unknown |
| Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 75 | Pressure not reported | unknown |
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