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Author Granato, E.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ JOSEPHSON JUNCTIONS ♦ MAGNETIC FLUX ♦ SPIN GLASS STATE ♦ HIGH-TC SUPERCONDUCTORS ♦ FLUX QUANTIZATION ♦ TEMPERATURE DEPENDENCE ♦ PHASE TRANSFORMATIONS ♦ COMPUTERIZED SIMULATION ♦ SCALING LAWS ♦ IV CHARACTERISTIC
Abstract Numerical simulations of the current-voltage characteristics of an ordered two-dimensional Josephson-junction array at an irrational flux quantum per plaquette are presented. The results are consistent with a scaling analysis that assumes a zero-temperature vortex-glass transition. The thermal-correlation length exponent characterizing this transition is found to be significantly different from the corresponding value for vortex-glass models in disordered two-dimensional superconductors. This leads to a current scale where nonlinearities appear in the current-voltage characteristics decreasing with temperature {ital T} roughly as {ital T}{sup 2} in contrast with the {ital T}{sup 3} behavior expected for disordered models. {copyright} {ital 1996 The American Physical Society.}
ISSN 01631829
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-10-01
Publisher Place United States
Journal Physical Review, B: Condensed Matter
Volume Number 54
Issue Number 14


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