Fluxon viscosity in high- T sub c superconductors

Journal Article · Wed Apr 01 00:00:00 EST 1992 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.45.7495· OSTI ID:7043252

Golosovsky, M; Naveh, Y; Davidov, D ^[1]

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1. Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem 91904 (Israel)

We present a phenomenological model for the frequency-dependent fluxon complex resistivity in which the fluxon viscosity {eta} is a central parameter. We use the high-frequency limit of this model to extract {eta} from microwave transmission measurements through thin superconducting films in the presence of a magnetic field. The measured value of {eta} allows a critical check of the model at low frequencies. The viscosity is anisotropic and consistent with anisotropic effective mass ratios of {gamma}=({ital m}{sub {ital c}}/{ital m}{sub {ital a}}){sup 1/2}=5--8 for Y-Ba-Cu-O and {gamma}=12--15 for Bi-Sr-Ca-Cu-O.

• OSTI ID: 7043252
• Journal Information: Physical Review, B: Condensed Matter; (United States), Vol. 45:13; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
36 MATERIALS SCIENCE
HIGH-TC SUPERCONDUCTORS
MAGNETIC FLUX
SUPERCONDUCTING FILMS
MICROWAVE POWER TRANSMISSION
BARIUM OXIDES
BISMUTH OXIDES
CALCIUM OXIDES
COPPER OXIDES
STRONTIUM OXIDES
VISCOSITY
YTTRIUM OXIDES
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BISMUTH COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
FILMS
OXIDES
OXYGEN COMPOUNDS
POWER TRANSMISSION
STRONTIUM COMPOUNDS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
665411* - Basic Superconductivity Studies- (1992-)
360207 - Ceramics
Cermets
& Refractories- Superconducting Properties- (1992-)