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Preparation and magnetic properties of epitaxy Tl-based superconducting film by magnetron sputtering

Journal Article · · Applied Physics Communications; (USA)
OSTI ID:6085365
Epitaxy Tl-based superconducting thin films have been prepared on SrTiO{sub 3} substrates by magnetron sputtering. The films consists of nearly pure Tl{sub 2}Ba{sub 2}Ca{sub 2}Cu{sub 3}O{sub 10} phase with T{sub c} (R=0) in the range of 100 K to 118 K and c-axis perpendicular to the film plane after annealing at 870 to 890 C for 15 minutes. For film heat-treated at 860 to 880 C for 5 to 10 minutes, the lower T{sub c} phase Tl{sub 2}Ba{sub 2}CaCu{sub 2}O{sub 8} becomes a major phase. Their magnetic properties are studied by a SQUID magnetometer. The observed anisotropy and temperature dependence of the flux pinning behavior in an epitaxy Tl{sub 2}Ba{sub 2}Ca{sub 2}Cu{sub 3}O{sub 10} film will be discussed.
OSTI ID:
6085365
Journal Information:
Applied Physics Communications; (USA), Journal Name: Applied Physics Communications; (USA) Vol. 10:1-2; ISSN 0277-9374; ISSN APCOD
Country of Publication:
United States
Language:
English

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