The Ginzburg-Landau expansion and the physical properties of superconductors with odd pairing

Journal Article · Wed Feb 01 04:00:00 EST 1995 · Journal of Experimental and Theoretical Physics

OSTI ID:159804

Kuchinskii, E Z; Posazhennikova, A I; Sadovskii, M V ^[1]

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1. Institute of Electrophysics, Ekaterinburg (Russian Federation)

The authors derive the Ginzburg-Landau expansion for superconductors whose gap function is odd in k{minus}k{sub F}. They show that for {open_quotes}odd{close_quotes} pairing there is an additional dependence of the expansion coefficients on the pairing coupling constant, which leads to a corresponding dependence of the physical characteristics of the superconductor. In contrast to the ordinary case, nonmagnetic impurities have a strong influence on the basic properties of an {open_quotes}odd{close_quotes} superconductor, and the nature of this influence differs considerably from the behavior predicted by the traditional theory of {open_quotes}dirty{close_quotes} superconductors. For one thing, this behavior manifests itself in the anomalous slope of the temperature dependence of the upper critical field H{sub c2} near T{sub c}. The field H{sub c2} is studied over the entire temperature range. 9 refs., 11 figs.

• OSTI ID: 159804
• Journal Information: Journal of Experimental and Theoretical Physics, Journal Name: Journal of Experimental and Theoretical Physics Journal Issue: 2 Vol. 80; ISSN 1063-7761; ISSN JXTPAS
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CRITICAL FIELD
ENERGY GAP
GINZBURG-LANDAU THEORY
PAIRING INTERACTIONS
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE