Physics – Condensed Matter – Superconductivity
Scientific paper
1997-07-16
Supercond Sci Technol 10 (1997) 721-726
Physics
Condensed Matter
Superconductivity
12 pages, LaTeX2e, 6 figures (epsfig), to be published in Supercond. Sci. and Technol
Scientific paper
10.1088/0953-2048/10/9/014
The resistivity vs. temperature relation in bulk ceramic HTSC under self-field conditions as well as in weak external magnetic fields is modelled by local Lorentz force induced fluxon motion with temperature dependent pinning. A pinning force density and two viscous drag coefficients in intergrain and intragrain regions, respectively, can be used as characteristic parameters describing the temperature, current, and external field dependences of the sample resistance.
Bauhofer W.
Henning Torsten
Kliem H.
Weyers A.
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