a -axis oriented YBa sub 2 Cu sub 3 O sub 7 minus x thin films on Si with CeO sub 2 buffer layers

Journal Article · Mon Oct 14 00:00:00 EDT 1991 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.106126· OSTI ID:5172776

Luo, L; Wu, X D; Dye, R C; Muenchausen, R E; Foltyn, S R; Coulter, Y; Maggiore, C J ^[1]; Inoue, T ^[2]

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1. Los Alamos National Laboratory, Los Alamos, New Mexico (USA)
2. Department of Electronics and Engineering, Iwaki Meisei University, 5-5-1 Iino-Chuodai, Iwaki, Fukushima 970 (Japan)

We have grown {ital a}-axis oriented YBa{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}} (YBCO) thin films on Si(100) substrates with (110) oriented insulating buffer layers of cerium dioxide (CeO{sub 2}) using the pulsed laser deposition technique. The films are highly oriented and textured as determined by {theta}--2{theta} x-ray diffraction, x-ray pole-figure scan, scanning electron microscopy, Rutherford backscattering spectroscopy, and ion channeling. No diffusion at the interface has been found at growth temperatures up to 760 {degree}C, indicating the CeO{sub 2} is a chemically stable and structurally compatible intermediate material for the growth of YBCO on Si. A zero resistance superconducting transition temperature of 87 K and a critical-current density ({ital J}{sub {ital c}}) of 1.5{times}10{sup 5} A/cm{sup 2} at 75 K have been measured; {ital J}{sub {ital c}} obtained represents the highest value for the {ital a}-axis oriented YBCO films.

• OSTI ID: 5172776
• Journal Information: Applied Physics Letters; (United States), Vol. 59:16; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
DEPOSITION
COPPER OXIDES
YTTRIUM OXIDES
BUFFERS
CRITICAL CURRENT
HIGH-TC SUPERCONDUCTORS
QUATERNARY COMPOUNDS
TRANSITION TEMPERATURE
ALKALINE EARTH METAL COMPOUNDS
AMINES
AMMONIUM COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
CURRENTS
ELECTRIC CURRENTS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360202* - Ceramics
Cermets
& Refractories- Structure & Phase Studies
360204 - Ceramics
Cermets
& Refractories- Physical Properties