Preparation of TlCaBaCuO high- T sub c superconducting thin films on LaAlO sub 3 substrates (CN)

Journal Article · Mon Jul 01 00:00:00 EDT 1991 · Journal of Applied Physics; (USA)

DOI:https://doi.org/10.1063/1.350268· OSTI ID:5490163

Yan, S L; Cao, H L ^[1]; Yang, X M ^[2]; Zhou, X D ^[3]

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1. Department of Electronics, Nankai University, Tianjin 300071, People's Republic of China (CN)
2. Department of Chemistry, Nankai University, Tianjin 300071, People's Republic of China (CN)
3. Central Lab., Nankai University, Tianjin 300071, People's Republic of China (CN)

Pure 2122 phase and 2223 phase superconducting TlCaBaCuO thin films have been reproducibly prepared on (100)LaAlO{sub 3} substrates by dc magnetron sputtering using a pair of superconducting Tl{sub 2}Ca{sub 2}B{sub 2}Cu{sub 3}O{sub 10} targets and post-annealing at different temperatures. X-ray diffraction analysis indicates that the films are highly {ital c}-axis oriented perpendicular to the film surface for both types of the thin films. The critical transition temperature {ital T}{sub {ital c}}({ital R} = 0) = 98 K and critical current {ital J}{sub {ital c}}(77 K)=1.0{times}10{sup 5} A/cm{sup 2} can be obtained for 2122 phase films, and for 2223 phase films {ital T}{sub {ital c}}({ital R} = 0) = 115 K and {ital J}{sub {ital c}}(77 K) = 5.5 {times} 10{sup 5} A/cm{sup 2} can be obtained.

• OSTI ID: 5490163
• Journal Information: Journal of Applied Physics; (USA), Vol. 70:1; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
MICROSTRUCTURE
SPUTTERING
TRANSITION TEMPERATURE
CALCIUM OXIDES
COPPER OXIDES
THALLIUM OXIDES
ANNEALING
FILMS
HIGH-TC SUPERCONDUCTORS
MAGNETRONS
X-RAY DIFFRACTION
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
CRYSTAL STRUCTURE
DIFFRACTION
ELECTRON TUBES
ELECTRONIC EQUIPMENT
EQUIPMENT
HEAT TREATMENTS
MICROWAVE EQUIPMENT
MICROWAVE TUBES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SCATTERING
SUPERCONDUCTORS
THALLIUM COMPOUNDS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
360204* - Ceramics
Cermets
& Refractories- Physical Properties
360202 - Ceramics
Cermets
& Refractories- Structure & Phase Studies