Scanning tunneling microscope studies of initial epitaxial growth of YBa sub 2 Cu sub 3 O sub 7-. delta. thin films
Conference
·
OSTI ID:5275463
- Tennessee Univ., Knoxville, TN (United States). Dept. of Physics and Astronomy
- Oak Ridge National Lab., TN (United States)
The initial stage of epitaxial growth of laser ablated YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} (YBCO) thin films on (001) SrTiO{sub 3}, LaAlO{sub 3}, and MgO substrates, and on slightly miscut LaAlO{sub 3} and SrTiO{sub 3}, have been studied with scanning tunneling microscopy (STM). Surface images show that the initial YBCO growth mode can be either of the Stranski-Krastanov or the Volmer-Weber type, depending on the film-substrate lattice mismatch and the growth temperature. A small substrate miscut angle is found to strongly influence the growth mode of YBCO films. Screw dislocation-mediated growth is suppressed, and films grown at 800{degrees}C on (001) LaAlO{sub 3} substrates with miscut angle of 2.0{degrees} along <100> or <110> directions were found to consist of tilted platelets that are epitaxially aligned with the substrate crystal lattice.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5275463
- Report Number(s):
- CONF-920402-8; ON: DE92014135
- Country of Publication:
- United States
- Language:
- English
Similar Records
Scanning tunneling microscope studies of initial epitaxial growth of YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} thin films
Suppression of the spiral-growth mechanism in epitaxial YBa sub 2 Cu sub 3 O sub 7 minus x films grown on miscut substrates
Early stages of YBa sub 2 Cu sub 3 O sub 7 minus. delta. epitaxial growth on MgO and SrTiO sub 3
Conference
·
Tue Mar 31 23:00:00 EST 1992
·
OSTI ID:10149368
Suppression of the spiral-growth mechanism in epitaxial YBa sub 2 Cu sub 3 O sub 7 minus x films grown on miscut substrates
Journal Article
·
Mon Aug 17 00:00:00 EDT 1992
· Applied Physics Letters; (United States)
·
OSTI ID:7203060
Early stages of YBa sub 2 Cu sub 3 O sub 7 minus. delta. epitaxial growth on MgO and SrTiO sub 3
Journal Article
·
Tue Mar 31 23:00:00 EST 1992
· Physical Review, B: Condensed Matter; (United States)
·
OSTI ID:7293151
Related Subjects
36 MATERIALS SCIENCE
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ABLATION
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CUPRATES
ELECTRON MICROSCOPY
FILMS
HIGH-TC SUPERCONDUCTORS
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MICROSCOPY
MORPHOLOGY
OXIDES
OXYGEN COMPOUNDS
RARE EARTH COMPOUNDS
SCANNING ELECTRON MICROSCOPY
STRONTIUM COMPOUNDS
STRONTIUM TITANATES
SUBSTRATES
SUPERCONDUCTING FILMS
SUPERCONDUCTORS
TITANATES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ABLATION
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CUPRATES
ELECTRON MICROSCOPY
FILMS
HIGH-TC SUPERCONDUCTORS
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MICROSCOPY
MORPHOLOGY
OXIDES
OXYGEN COMPOUNDS
RARE EARTH COMPOUNDS
SCANNING ELECTRON MICROSCOPY
STRONTIUM COMPOUNDS
STRONTIUM TITANATES
SUBSTRATES
SUPERCONDUCTING FILMS
SUPERCONDUCTORS
TITANATES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES