Effect of nonmagnetic and magnetic impurities on the specific heat jump in anisotropic superconductors

LA Openov*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

12 Citations (Scopus)

Abstract

The specific-heat jump DeltaC at a critical temperature T-c in an anisotropic superconductor containing both potential and spin-flip scatterers is calculated within a weak-coupling mean-field approximation. It is shown that the presence of even a small amount of spin-flip scatterers in the sample leads to a drastic change in the dependence of DeltaC on T-c in a disordered (d+s)-wave or a strongly anisotropic s-wave superconductor. The implications for experimental tests for the presence of an s-wave admixture in the superconducting order parameter of high-T-c superconductors are discussed.

Original languageEnglish
Article number224516
Number of pages10
JournalPhysical Review. B: Condensed Matter and Materials Physics
Volume69
Issue number22
DOIs
Publication statusPublished - Jun-2004

Keywords

  • HIGH-TEMPERATURE SUPERCONDUCTORS
  • D-WAVE SUPERCONDUCTIVITY
  • THERMODYNAMIC PROPERTIES
  • PARAMAGNETIC IMPURITIES
  • S-WAVE
  • SCATTERING
  • TC
  • SUPPRESSION
  • GAP

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