Tl-1223 thick films-a competitor for Y-123 coated conductors?

Author

Tönies, Susanne ; Weber, Harald W. ; Gritzner, Gerhard ; Heiml, Oliver ; Eder, Mario H.

Author_Institution

Atomic Inst. of the Austrian Universities, Vienna, Austria

Volume

13

Issue

2

fYear

2003

fDate

6/1/2003 12:00:00 AM

Firstpage

2618

Lastpage

2621

Abstract

Tl-1223 thick films were grown on single crystalline LaAlO₃ substrates by a screen printing method and doped with small amounts of ²³⁵U. The critical current density was measured by dc transport measurements in fields up to 15 T and at temperatures between 30 K and 85 K. Furthermore, the angular dependence of the critical current density and of the irreversibility lines were studied. Excellent texture and very high critical current densities with a weak field dependence were found in the as grown samples. Substantial enhancements of the critical current density and enhanced irreversibility lines are observed after thermal and fast neutron irradiation. The weak field dependence of J_c is further reduced. The results are compared with YBaCuO coated conductors and Bi-2223 tapes.

Keywords

barium compounds; calcium compounds; critical current density (superconductivity); high-temperature superconductors; magnetisation; superconducting tapes; superconducting thin films; thallium compounds; thick films; 15 T; 30 to 85 K; Tl-1223 thick films; TlBa₂Ca₂Cu₃O_x; critical current density; dc transport measurements; fast neutron irradiation; high temperature superconductor; irreversibility lines; screen printing method; single crystalline LaAlO₃ substrates; texture; thermal neutron irradiation; weak field dependence; Conductive films; Critical current density; Crystallization; Current measurement; Density measurement; Neutrons; Printing; Temperature dependence; Thick films; Thickness measurement;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2003.811911

Filename

1212154