Effect of phase fluctuations on the low-temperature penetration depth of high-[ital T][sub [ital c]] superconductors

Journal Article · Sun Feb 19 23:00:00 EST 1995 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.74.1430· OSTI ID:6458107

Roddick, E; Stroud, D ^[1]

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1. Department of Physics, Ohio State University, Columbus, Ohio 43210 (United States)

We describe a simple model to estimate the effects of order parameter phase fluctuations on the penetration depth [lambda]([ital T]) of high-[ital T][sub [ital c]] superconductors. When treated classically, such fluctuations are found to produce a linear temperature dependence of [lambda]([ital T]), which may be comparable to the experimentally observed magnitude. This dependence persists when the combined effects of charging interactions and dissipation are included in the model. Hence, such a dependence may not be a unique signature of a superconductor with line nodes at the Fermi surface.

• DOE Contract Number: FG02-90ER45427
• OSTI ID: 6458107
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 74:8; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
665411 -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
FLUCTUATIONS
HIGH-TC SUPERCONDUCTORS
INTERACTIONS
ORDER PARAMETERS
PAIRING INTERACTIONS
PENETRATION DEPTH
SUPERCONDUCTORS
SYMMETRY
TEMPERATURE DEPENDENCE
VARIATIONS