Enhanced Jc and improved grain-boundary properties in Ag-doped YBa2Cu3O7−δ films

A large increase (∼8×) in critical current density, Jc, was achieved for in situ laser ablated YBa2Cu3O7−δ–Ag films. High-resolution Auger electron spectroscopic investigation indicates that the Ag-doped films are stoichiometric with a relatively low grain-boundary extension (8 nm) in contrast to un...

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Bibliographic Details
Published in:Applied physics letters 1997-07, Vol.71 (1), p.137-139
Main Authors: Selvam, P., Seibt, E. W., Kumar, D., Pinto, R., Apte, P. R.
Format: Article
Language:English
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Summary:A large increase (∼8×) in critical current density, Jc, was achieved for in situ laser ablated YBa2Cu3O7−δ–Ag films. High-resolution Auger electron spectroscopic investigation indicates that the Ag-doped films are stoichiometric with a relatively low grain-boundary extension (8 nm) in contrast to undoped YBa2Cu3O7−δ films (32 nm). Further analysis suggests that the doped film contains a much lower silver content (
ISSN:0003-6951
1077-3118
DOI:10.1063/1.119452