Superconductor film growth on LaGaO sub 3 substrates by liquid phase epitaxy

Journal Article · Mon Apr 30 00:00:00 EDT 1990 · Applied Physics Letters; (USA)

DOI:https://doi.org/10.1063/1.103222· OSTI ID:7122893

Belt, R F; Ings, J; Diercks, G ^[1]

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1. Airtron Division, Litton Systems, Inc., 200 East Hanover Avenue, Morris Plains, New Jersey 07950 (USA)

Growth conditions and solubility relations were investigated for controlled crystallization of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}} and Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{ital x}} films from KCl solutions. Applications were made to film growth by liquid phase epitaxy using the dipping process. Epipolished substrates of LaGaO{sub 3} with (001) orientations were employed. The micrometer thick films were identified by x ray to be of the correct phases. Furthermore, the polycrystalline films showed a highly preferred orientation with (001) of the films parallel to (001) of LaGaO{sub 3}. The Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} film composition was superconducting as-grown with a zero resistance {ital T}{sub {ital c}} of 78 K and a {Delta}{ital T}{sub {ital c}} of 7 K, while the YBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}} films required an oxidation for optimum properties.

• OSTI ID: 7122893
• Journal Information: Applied Physics Letters; (USA), Journal Name: Applied Physics Letters; (USA) Vol. 56:18; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
EPITAXY
FILMS
GALLIUM COMPOUNDS
GALLIUM OXIDES
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
LIQUID PHASE EPITAXY
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTING FILMS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES