As-grown superconducting thin films of Bi(Pb)-Sr-Ca-Cu-O by magnetron sputtering

Journal Article · Mon Aug 27 04:00:00 EDT 1990 · Applied Physics Letters; (USA)

DOI:https://doi.org/10.1063/1.103383· OSTI ID:6430244

Hakuraku, Y; Higo, S; Ogushi, T ^[1]

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1. Department of Electronics, Kagoshima University, Koorimoto, Kagoshima (Japan)

As-grown superconducting thin films of Bi(Pb)-Sr-Ca-Cu-O have been prepared on MgO (100) at 620--740 {degree}C by dc magnetron sputtering using a single target. The as-grown process followed by no special annealing yields {ital c}-axis oriented superconducting thin films with a smooth surface. Although the superconducting properties of the thin films are very sensitive to the substrate temperatures during film growth, reproducible results were obtained. The {ital c}-axis lattice constant of the films was also controlled to the values of about 24, 31, and 37 A by changing the substrate temperature. The as-grown film deposited at 720 {degree}C showed zero resistivity at 81 K and the critical current density increased from 8{times}10{sup 4} A/cm{sup 2} at 77 K to 3{times}10{sup 6} A/cm{sup 2} at 4.2 K.

• OSTI ID: 6430244
• Journal Information: Applied Physics Letters; (USA), Journal Name: Applied Physics Letters; (USA) Vol. 57:9; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL CURRENT
CURRENTS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
FILMS
HIGH-TC SUPERCONDUCTORS
LEAD COMPOUNDS
LEAD OXIDES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SPUTTERING
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE