Preparation of a -axis oriented Y sub 1 Ba sub 2 Cu sub 3 O sub 7 minus. delta. films by laser metalorganic chemical vapor deposition

Journal Article · Mon Aug 12 04:00:00 EDT 1991 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.105260· OSTI ID:5480949

Ushida, T; Higa, H; Higashiyama, K; Hirabayashi, I; Tanaka, S ^[1]

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1. Superconductivity Research Laboratory, International Superconductivity, Technology Center, 2-4-1 Mutsuno, Atsuta-ku, Nagoya 456, Japan (JP)

Superconducting Y{sub 1}Ba{sub 2}Cu{sub 3}O {sub 7{minus}{delta}} (YBCO) thin films were prepared on MgO(100) substrates by metalorganic chemical vapor deposition. The films were partly irradiated by ArF excimer laser during deposition. We found that the irradiated parts were strongly {ital a}-axis oriented normal to the surface of the substrate for YBCO films prepared at 650--700 {degree}C, whereas the x-ray diffraction pattern of the unirradiated parts consisted of the peaks of the (110), (00{ital l}), and ({ital h}00) planes. The surface morphology of the laser irradiated part of the films was very smooth, whereas that of the unirradiated parts was relatively rough. The zero-resistance temperature of the unirradiated and the irradiated parts of YBCO films prepared at 650 {degree}C were 45 and 72 K, respectively.

• OSTI ID: 5480949
• Journal Information: Applied Physics Letters; (United States), Journal Name: Applied Physics Letters; (United States) Vol. 59:7; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
AMINES
AMMONIUM COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CHEMICAL COATING
CHEMICAL VAPOR DEPOSITION
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
DEPOSITION
DIFFRACTION
ELECTROMAGNETIC RADIATION
FILMS
HIGH-TC SUPERCONDUCTORS
LASER RADIATION
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
QUATERNARY COMPOUNDS
RADIATIONS
SCATTERING
SUPERCONDUCTING FILMS
SUPERCONDUCTORS
SURFACE COATING
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES