Title: Statistics of normal-phase clusters and magnetic-flux trapping in films of high-T[sub c] superconductors.
Authors: Kuz’min, Yu. I.; Pleshakov, I. V.
Abstract: The morphological properties of YBCO superconducting films and their relationship to magnetic and transport phenomena are considered. A geometric probability analysis of the principal statistical characteristics of normal-phase clusters is performed, and their influence on the dynamics of trapped magnetic flux under the action of a pulsed transport current is revealed. The superconducting film is treated as a percolation system. It is found that the critical currents have a statistical distribution, which is specified by the morphology of the material being studied. The critical current for passage of the film into the resistive state is found.
Subjects: COPPER oxide superconductors; CLUSTER theory (Nuclear physics); MAGNETIC flux
Publication: Technical Physics Letters, 1999, Vol 25, Issue 6, p475
ISSN: 1063-7850
Publication type: Academic Journal
DOI: 10.1134/1.1262520

Statistics of normal-phase clusters and magnetic-flux trapping in films of high-T[sub c] superconductors.

Kuz’min, Yu. I.; Pleshakov, I. V.