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

Journal Article · Sun Aug 01 04:00:00 EDT 1993 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.48.4219· OSTI ID:6171893

Hirschfeld, P J ^[1]; Goldenfeld, N ^[2]

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1. Department of Physics, University of Florida, 215 Williamson Hall, Gainesville, Florida 32611 (United States)
2. Department of Physics and Materials Research Laboratory, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois 61801-3080 (United States)

For a pure superconductor in a [ital d]-wave-like state at temperatures [ital T] well below the critical temperature [ital T][sub [ital c]], the deviation [Delta][lambda] of the penetration depth from its zero-temperature value [lambda](0) is proportional to [ital T]. When the concentration [ital n][sub [ital i]] of strongly scattering impurities is nonzero, [Delta][lambda][proportional to][ital T][sup [ital n]], where [ital n]=2 for [ital T][lt][ital T][sup *][much lt][ital T][sub [ital c]] and [ital n]=1 for [ital T][sup *][lt][ital T][much lt][ital T][sub [ital c]]. The crossover temperature [ital T][sup *] and the increase in [lambda](0) scale as [radical][ital n][sub [ital i]] up to logarithmic corrections when resonant scattering is dominant. We argue that this case is relevant to recent measurements on YBa[sub 2]Cu[sub 3]O[sub 7[minus][delta]] and present specific results for a model pairing state with [ital d][sub [ital x]][sup 2][minus][ital y][sup 2] symmetry.

• OSTI ID: 6171893
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 48:6; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

665411* -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
D WAVES
HIGH-TC SUPERCONDUCTORS
IMPURITIES
INELASTIC SCATTERING
OXIDES
OXYGEN COMPOUNDS
PARTIAL WAVES
PENETRATION DEPTH
RESONANCE SCATTERING
SCATTERING
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES