Two-component Ginzburg–Landau theory of superconducting surfaces in transverse electric field

A boundary condition for the Ginzburg–Landau wave function of a two-component superconductor at surfaces biased by a strong transverse electric field is derived within the de Gennes approach. This boundary condition depends on two correlation lengths of order parameters. A small correlation length l...

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Bibliographic Details
Published in:Journal of non-crystalline solids 2010-08, Vol.356 (37), p.2056-2058
Main Authors: Konsin, P., Sorkin, B.
Format: Article
Language:English
Subjects:
Boundary conditions
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Correlation
Cuprates
Electric field effects
Electric fields
Exact sciences and technology
Order parameters
Oscillations
Phenomenological theories (two-fluid, ginzburg-landau, etc.)
Physics
Superconductivity
Superconductors
Theory
Theory and models of superconducting state
Wave functions
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Summary:A boundary condition for the Ginzburg–Landau wave function of a two-component superconductor at surfaces biased by a strong transverse electric field is derived within the de Gennes approach. This boundary condition depends on two correlation lengths of order parameters. A small correlation length leads to the oscillations of the shift of the critical temperature of superconducting layers in the transverse electric field on layer width L. The superconducting temperature T c oscillates with the layer width also in the absence of the electric field in the two-band model. A simple theory of the field effect on the superconducting temperature of layers is developed.
ISSN:0022-3093
1873-4812
DOI:10.1016/j.jnoncrysol.2010.05.039