Organometallic chemical vapor deposition of high T/sub c/ superconducting Bi-Sr-Ca-Cu-O films

Journal Article · Mon Mar 20 04:00:00 EST 1989 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.101481· OSTI ID:6229761

Zhang, J; Zhao, J; Marcy, H O; Tonge, L M; Wessels, B W; Marks, T J; Kannewurf, C R

Films of the high T/sub c/ Bi-Sr-Ca-Cu-O superconductor have been prepared by organometallic chemical vapor deposition using the volatile metalorganic precursors Cu(acetylacetonate)/sub 2/ , Sr(dipivaloylmethanate)/sub 2/ , and Ca(dipivaloylmethanate)/sub 2/, and triphenylbismuth. Deposition is carried out at 2 Torr with argon as the carrier gas and oxygen and water vapor as reactants. Film growth rates of 2--3 ..mu..m/h are achieved. After annealing under oxygen, energy dispersive x-ray analysis and x-ray diffraction data reveal that such films on (100) single-crystal MgO consist predominantly of the Bi/sub 2/(Sr,Ca)/sub 3/Cu/sub 2/O/sub x/, T/sub c/ = 85 K, phase and have preferential orientation of the crystallite c axes perpendicular to the substrate surface. Four-probe resistivity measurements reveal the onset of film superconductivity at approx.110 K and zero resistance by 75 K.

• Research Organization: Northwestern University, Evanston, Illinois 60208
• OSTI ID: 6229761
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 54:12; ISSN APPLA
• 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
ANNEALING
BISMUTH COMPOUNDS
BISMUTH OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
CHEMICAL COATING
CHEMICAL VAPOR DEPOSITION
COATINGS
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
DATA
DEPOSITION
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
EXPERIMENTAL DATA
FABRICATION
FILMS
HEAT TREATMENTS
HIGH TEMPERATURE
INFORMATION
LOW TEMPERATURE
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SCATTERING
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
SURFACE COATING
THERMODYNAMIC PROPERTIES
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
VAPOR DEPOSITED COATINGS
VERY LOW TEMPERATURE
X-RAY DIFFRACTION