Enhancement of Pinning Energy and Critical Current Density in Tl2CaBa2Cu2O8 Films by Proton Irradiation

Autor: Robert J. Soulen, G. P. Summers, William L. Olson, B.D. Weaver, Mark Reeves, Michael M. Eddy, E. J. Smith, Timothy W. James
Rok vydání: 1991
Předmět:
Zdroj: MRS Proceedings. 235
ISSN: 1946-4274
0272-9172
DOI: 10.1557/proc-235-695
Popis: Measurements are presented which show the effect of proton irradiation on the irreversibility line and critical current in Tl2 CaBa2Cu2O8 thin films. These data show that the irreversibility line is dependent on the defect structure and that the pinning energy is increased by proton irradiation. This leads to an increase in the critical current density at 60 K for the lowest radiation dose. Further irradiation reduces the critical current, even while the irreversibility line is enhanced.
Databáze: OpenAIRE