Gauge invariance and transport properties in superconductors above Tc
A. G. Aronov, S. Hikami, A. I. Larkin
DOI 10.1103/PhysRevB.51.3880 · Physical Review B
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Abstract
We have developed a theory of transport phenomena for superconductors above Tc in the fluctuating region in dirty and clean limits. We show that it is possible to construct a phenomenological theory based on Ginzburg-Landau equation and its gauge invariance, and as a result we can express the fluctuating corrections to the conductivity tensor in a magnetic field in terms of the classical conductivity and coherence lengths. We find that the sign of the Hall conductivity is universal and is determined by ∂ lnTc/∂ lnμ.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7 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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