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Title: Modeling transport properties of inhomogeneous superconductor-metal composites

We propose a model for a superconductor-metal composite that allows to derive intrinsic transport properties of the superconducting phase based on 2D images of its cross section, and a minimal set of parameters. The method is tested experimentally by using, as model composite, a “transversal bridge” made on a Bi{sub 2}Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub 10+x} (BSCCO)-Ag multi-filamentary tape. It is shown that the approach allows to predict the measured I−〈E〉 curves of the filaments. In addition, one can determine the critical current anisotropy between the longitudinal and transverse directions of the Ag-BSCCO tape, and also of its superconducting filaments separately, which emphasizes the role of the morphology of the composite in the transport properties.
Authors:
;  [1] ;  [1] ;  [2] ;  [3] ;  [4] ;  [5] ;  [6]
  1. Superconductivity Laboratory and “Henri Poincarè” Group of Complex Systems, Physics Faculty-IMRE, University of Havana, 10400 Havana (Cuba)
  2. (Canada)
  3. BRALAX, S. de RL., Tampico, Tamaulipas (Mexico)
  4. (Cuba)
  5. Department of Physics, University of Oslo, P.O. Box 1048 Blindern, 0316 Oslo (Norway)
  6. (Australia)
Publication Date:
OSTI Identifier:
22392024
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 20; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ANISOTROPY; BISMUTH OXIDES; CALCIUM OXIDES; COPPER OXIDES; CRITICAL CURRENT; CUPRATES; HIGH-TC SUPERCONDUCTORS; SILVER; SIMULATION; STRONTIUM OXIDES; TWO-DIMENSIONAL CALCULATIONS