Thermodynamics of a d-wave superconductor near a surface

L. J. Buchholtz*, Mario Palumbo, D. Rainer, J. A. Sauls

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

119 Scopus citations

Abstract

We study the properties of an anisotropically paired superconductor in the presence of specularly reflecting surface. The bulk stable phase of the superconducting order parameter is taken to have dx2-y2 symmetry. Contributions by order parameter components of different symmetries vanish in the bulk, but may enter in the vicinity of a wall. We calculate the self-consistent order parameter and surface free energy within the quasiclassical formulation of superconductivity. We discuss, in particular, the dependence of these quantities on the degree of order parameter mixing and the surface to lattice orientation. Knowledge of the thermodynamically stable order parameter near a surface is a necessary precondition for calculating measurable surface properties which we present in a companion paper.

Original languageEnglish (US)
Pages (from-to)1079-1098
Number of pages20
JournalJournal of Low Temperature Physics
Volume101
Issue number5-6
DOIs
StatePublished - Dec 1995

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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