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 04:00:00 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: ATandT Bell Laboratories, Murray Hill, New Jersey 07974
• OSTI ID: 6946473
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 53:23; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

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