Critical behavior of impure superconductors in 4 − ε dimensions

Critical behavior of impure superconductors in 4 − ε dimensions

We show that within the epsilon expansion, the impure superconductor coupled to a gauge field exhibits a new stable fixed point, indicating that the system has a second-order transition for sufficienly large impuirty concentration. The critical exponents at this transition are computed to O(epsilon)...

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Veröffentlicht in:Phys. Rev. B: Condens. Matter; (United States) 1982-06, Vol.25 (11), p.7058-7059
Hauptverfasser: Boyanovsky, Daniel, Cardy, John L.
Format: Artikel
Sprache:eng
Schlagworte:
656101 - Solid State Physics- Superconductivity- General Theory- (-1987)
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
GAUGE INVARIANCE
GINZBURG-LANDAU THEORY
IMPURITIES
INVARIANCE PRINCIPLES
PHASE TRANSFORMATIONS
SERIES EXPANSION
SUPERCONDUCTORS
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Beschreibung
Zusammenfassung:We show that within the epsilon expansion, the impure superconductor coupled to a gauge field exhibits a new stable fixed point, indicating that the system has a second-order transition for sufficienly large impuirty concentration. The critical exponents at this transition are computed to O(epsilon).
ISSN:0163-1829
DOI:10.1103/PhysRevB.25.7058