Suppression of Superconductivity in Disordered Interacting Wires
D. A. Pesin, A. V. Andreev
DOI 10.1103/PhysRevLett.97.117001 · Physical Review Letters
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Abstract
We study superconductivity suppression due to thermal fluctuations in disordered wires using the replica nonlinear σ-model (NLσM). We show that in addition to the thermal phase slips there is another type of fluctuations that result in a finite resistivity. These fluctuations are described by saddle points in NLσM and cannot be treated within the Ginzburg-Landau approach. The contribution of such fluctuations to the wire resistivity is evaluated with exponential accuracy. The magnetoresistance associated with this contribution is negative.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Pb 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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