Microstructure of epitaxial YbBa/sub 2/Cu/sub 3/O/sub 7/ superconducting films grown by a new liquid-gas-solidification technique

Journal Article · Mon Dec 05 00:00:00 EST 1988 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.100518· OSTI ID:6946473

Chen, C H; Chen, H S; Liou, S H

We have studied the microstructures of epitaxial YbBa/sub 2/Cu/sub 3/O/sub 7/ superconducting films grown on SrTiO/sub 3/(100) and (110) substrates by a new liquid-gas-solidification processing technique. Films grown on SrTiO/sub 3/(100) and (110) substrates are epitaxially oriented with (001) and (110) axes normal to the film surface. Twinned domains of approx.200 A in size are observed in the (001) oriented films. Most defects observed can be attributed to the presence of stacking faults along the c axis. The presence of Cu-O bilayer defects is also observed. Rapid oxygen diffusion in the liquid phase is found to play an important role in the microstructure of the thin films.

• Research Organization: AT&T Bell Labs., Murray Hill, NJ (United States)
• OSTI ID: 6946473
• Journal Information: Appl. Phys. Lett.; (United States), Vol. 53:23
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
LIQUID PHASE EPITAXY
MICROSTRUCTURE
COPPER OXIDES
STRONTIUM OXIDES
COATINGS
SUPERCONDUCTING FILMS
FABRICATION
TITANIUM OXIDES
YTTRIUM OXIDES
CRYSTAL DEFECTS
DIFFUSION
DOMAIN STRUCTURE
OXYGEN
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
CRYSTAL STRUCTURE
ELEMENTS
EPITAXY
FILMS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
STRONTIUM COMPOUNDS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360202* - Ceramics
Cermets
& Refractories- Structure & Phase Studies
360201 - Ceramics
Cermets
& Refractories- Preparation & Fabrication