Characterization of high-temperature superconductor ceramics from their resistive transition

Torsten Henning, H Kliem, A Weyers, W Bauhofer
1997 Superconductors Science and Technology  
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.
doi:10.1088/0953-2048/10/9/014 fatcat:4icmuytmevbo7deounf3pm6oee