Critical Currents and Thermally Activated Flux Motion in High-Temperature Superconductors

Authors

T. T M Palstra, University of TwenteFollow
Bertram Batlogg, ETH ZurichFollow
R. B. Van Dover, Cornell UniversityFollow
Lynn Schneemeyer, Montclair State UniversityFollow
Joseph V. Waszczak, University of WashingtonFollow

Document Type

Article

Publication Date

12-1-1989

Abstract

We have measured the resistance below Tc of single crystals of the high-temperature superconductors Ba2YCu3O7 and Bi2.2Sr2Ca0.8Cu2O 8+δ in magnetic fields up to 12 T. The resistive transition of both compounds is dominated by intrinsic dissipation which is thermally activated, resulting in an exponential temperature dependence of the resistivity well below Tc. The dissipation is significantly larger and of different character in the Bi-Cu compound than in Ba2YCu 3O7. The relation between the activated behavior and the depinning critical current is discussed.

DOI

10.1063/1.101474

Montclair State University Digital Commons Citation

Palstra, T. T M; Batlogg, Bertram; Van Dover, R. B.; Schneemeyer, Lynn; and Waszczak, Joseph V., "Critical Currents and Thermally Activated Flux Motion in High-Temperature Superconductors" (1989). Department of Chemistry and Biochemistry Faculty Scholarship and Creative Works. 460.
https://digitalcommons.montclair.edu/chem-biochem-facpubs/460