Metal organic chemical vapor deposition of high-temperature superconducting Y-Ba-Cu-O films
- School of Electrical Engineering and Computer Science, Univ. of Oklahoma, Norman, OK (US)
- Dept. of Electrical and Computer Engineering, Univ. of Cincinnati, Cincinnati, OH (US)
The authors have deposited high-temperature superconducting films of Y-Ba-Cu-O on yttria-stabalized zirconia (YSZ) and BaF{sub 2}/YSZ by metal organic chemical vapor deposition technique. Deposition was carried out under a low-pressure (5 torr) ambient with substrate temperature of 780{degrees}C. The x-ray diffraction (XRD) of the as-deposited films on YSZ (100) showed c-axis and b-axis orientations, as well as a certain amount of impurity peaks. The temperature dependence of these films exhibited an onset temperature of 90K and a zero resistance at 50 K. A significant improvement in the transition temperature width was observed for the as-deposited films on BaF{sub 2}/YSZ substrates with onset temperature of 90K and falling to zero at 80 K. The XRD results of these films show the presence of c- as well as a- and b-axes but with considerably reduced impurity phase.
- OSTI ID:
- 6516076
- Journal Information:
- Journal of the Electrochemical Society; (USA), Journal Name: Journal of the Electrochemical Society; (USA) Vol. 137:8; ISSN 0013-4651; ISSN JESOA
- Country of Publication:
- United States
- Language:
- English
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75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CHEMICAL COATING
CHEMICAL COMPOSITION
CHEMICAL VAPOR DEPOSITION
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
DEPOSITION
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FILMS
HIGH-TC SUPERCONDUCTORS
IMPURITIES
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
PHYSICAL PROPERTIES
SCATTERING
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
SUPERCONDUCTORS
SURFACE COATING
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES