In-situ pulsed laser deposition of high-T sub c YBa sub 2 Cu sub 3 O sub 7 superconducting thin films on (100) LaA103 substrates
- North Carolina State Univ., Raleigh, NC (USA). Dept. of Materials Science
- Oak Ridge National Lab., TN (USA)
The formation of superconducting thin films on lanthanum aluminate substrates is very important for high-frequency applications. In this paper, we discuss the fabrication of epitaxial superconducting YBa{sub 2}Cu{sub 3}O{sub 7} thin films on (100)LaAlO{sub 3} substrates, which exhibit excellent dielectric properties required for high frequency applications. The films were deposited by the biased pulsed laser evaporation technique (PLE) at substrate temperatures between 500--650{degree}C and exhibit excellent crystallinity with best minimum ion channeling yields corresponding to approximately 3%. The superconducting transition temperatures varied from 88--92 K with critical current densities at 77K and zero magnetic field greater than 4 {minus} 5 {times} 10{sup 6} Amps/cm{sup 2}.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 7008685
- Report Number(s):
- CONF-891119-122; ON: DE90009861
- Resource Relation:
- Conference: Materials Research Society fall meeting, Boston, MA (USA), 27 Nov - 2 Dec 1989
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARIUM OXIDES
DEPOSITION
COPPER OXIDES
YTTRIUM OXIDES
ALUMINIUM OXIDES
CRYSTAL STRUCTURE
CURRENT DENSITY
HIGH-TC SUPERCONDUCTORS
ION CHANNELING
LANTHANUM OXIDES
SUBSTRATES
SUPERCONDUCTING FILMS
X-RAY DIFFRACTION
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
CHANNELING
COHERENT SCATTERING
COPPER COMPOUNDS
DIFFRACTION
FILMS
LANTHANUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
RARE EARTH COMPOUNDS
SCATTERING
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication
360204 - Ceramics
Cermets
& Refractories- Physical Properties
656100 - Condensed Matter Physics- Superconductivity