Nonlocal effects on the magnetic penetration depth in d-wave superconductors

Ioan Kosztin, Anthony J. Leggett

Research output: Contribution to journalArticlepeer-review


8We show that, under certain conditions, the low temperature behavior of the magnetic penetration depth λ(T) of a pure d-wave superconductor is determined by nonlocal electrodynamics and, contrary to the general belief, the deviation Δλ(T) = λ(T) - λ(0) is proportional to T2 and not T. We predict that the Δλ(T) ∝ T2 dependence, due to nonlocality, should be observable experimentally in nominally clean high-Tc superconductors below a crossover temperature T* = (ξ000 ∼ 1 K. Possible complications due to impurities, surface quality, and crystal axes orientation are discussed.

Original languageEnglish (US)
Pages (from-to)135-138
Number of pages4
JournalPhysical review letters
Issue number1
StatePublished - 1997

ASJC Scopus subject areas

  • General Physics and Astronomy


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