Effect of diffusive boundaries on surface superconductivity in unconventional superconductors

Journal Article · Sat Jun 01 04:00:00 EDT 1996 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.53.15201· OSTI ID:285425

Agterberg, D F; Walker, M B ^[1]

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1. Department of Physics, University of Toronto, Toronto, Ontario, M5S 1A7 (CANADA)

Boundary conditions for a superconducting order parameter at a diffusive scattering boundary are derived from microscopic theory. The results indicate that for all but isotropic gap functions the diffusive boundary almost completely suppresses surface superconductivity in the Ginzburg-Landau regime. This indicates that in anisotropic superconductors surface superconductivity can only be observed for surface normals along high-symmetry directions where atomically clean surfaces can be cleaved. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 285425
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 22 Vol. 53; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BOUNDARY CONDITIONS
GINZBURG-LANDAU THEORY
ORDER PARAMETERS
SURFACE PROPERTIES
TYPE-II SUPERCONDUCTORS