Effect of strong scattering on the low-temperature penetration depth of a d-wave superconductor

Peter J. Hirschfeld, Nigel Goldenfeld

Research output: Contribution to journalArticlepeer-review

Abstract

For a pure superconductor in a d-wave-like state at temperatures T well below the critical temperature Tc, the deviation of the penetration depth from its zero-temperature value (0) is proportional to T. When the concentration ni of strongly scattering impurities is nonzero, Tn, where n=2 for T<T*Tc and n=1 for T*<TTc. The crossover temperature T* and the increase in (0) scale as ni up to logarithmic corrections when resonant scattering is dominant. We argue that this case is relevant to recent measurements on YBa2Cu3O7- and present specific results for a model pairing state with dx2-y2 symmetry.

Original languageEnglish (US)
Pages (from-to)4219-4222
Number of pages4
JournalPhysical Review B
Volume48
Issue number6
DOIs
StatePublished - 1993

ASJC Scopus subject areas

  • Condensed Matter Physics

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