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

Volume

11

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

3102

Lastpage

3105

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)₂Ca₂Cu₃O_x; 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;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.919719

Filename

919719