Title :
Electrodeposition process for the preparation of superconducting thallium oxide films
Author :
Bhattacharya, Raghu N. ; Feldmann, Matt ; Larbalestier, David ; Blaugher, Richard D.
Author_Institution :
Nat. Renewable Energy Lab., Golden, CO, USA
fDate :
3/1/2001 12:00:00 AM
Abstract :
A two-layer electrodeposition process was developed to deposit biaxially textured thallium-oxide superconductor films on Ag-coated, single-crystal substrates. Transport measurements for the electrodeposited, thallium-oxide-based superconductor films show values above 106 A/cm2 at 77 K in zero field. In this paper we are reporting magneto-optical imaging data on electrodeposited 1223 thallium-oxide superconductor films. Magneto-optical imaging provides insight into the nature of current flow in the Tl-oxide superconductor, and thus will help us to improve the critical current density in bulk high-temperature superconductor wire or tape
Keywords :
barium compounds; bismuth compounds; calcium compounds; critical current density (superconductivity); electrodeposition; high-temperature superconductors; magneto-optical effects; strontium compounds; superconducting tapes; superconducting thin films; terbium compounds; texture; (TbBi)(SrBa)2Ca2Cu3O; (TbBi)(SrBa)2Ca2Cu3Ox; 77 K; Ag; Ag-coated single-crystal substrates; biaxially textured superconductor films; critical current density; current flow; high-temperature superconductor; magneto-optical imaging; preparation; superconducting films; superconductor tape; superconductor wire; transport measurements; two-layer electrodeposition process; Granular superconductors; High temperature superconductors; Optical films; Optical imaging; Superconducting filaments and wires; Superconducting films; Superconducting magnets; Superconducting materials; Superconducting transition temperature; Telephony;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
