Lattice distortions in YBa sub 2 Cu sub 3 O sub 7 minus. delta. thin films grown in situ by sequential ion beam sputtering
Journal Article
·
· Journal of Applied Physics; (USA)
- W. M. Keck Laboratory of Engineering Materials, California Institute of Technology, Pasadena, California 91125 (USA)
- Hughes Research Laboratory, Malibu, California 90265 (USA)
We have analyzed epitaxial, {ital c}-axis oriented YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} thin films grown {ital in} {ital situ} by sequential ion-beam sputtering on (100) SiTiO{sub 3} and (100) MgO substrates. X-ray diffraction studies showed the presence of both homogeneous and inhomogeneous lattice distortions along the {ital c}-direction. The {ital c}-axis lattice parameters ranged from 11.72 to 12.00 A. The broadening of the (00{ital l}) Bragg peaks in excess of the broadening due to finite film thickness was found to be due to inhomogeneous lattice distortions. The overall trend in the data shows an increase of the inhomogeneous strains with the enlargement of the {ital c}-axis lattice parameter. The inhomogeneous lattice distortions are interpreted as fluctuations in the {ital c}-axis lattice parameter. The resistive transitions were found to be correlated to the lattice distortions. We show correlations between the midpoint {ital T}{sub {ital c}} and the {ital c}-axis lattice parameter and between the transition widths and the inhomogeneous lattice distortions.
- OSTI ID:
- 5623822
- Journal Information:
- Journal of Applied Physics; (USA), Journal Name: Journal of Applied Physics; (USA) Vol. 69:9; ISSN 0021-8979; ISSN JAPIA
- Country of Publication:
- United States
- Language:
- English
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Journal Article
·
Mon Jun 11 00:00:00 EDT 1990
· Applied Physics Letters; (USA)
·
OSTI ID:7155608
Crystallinity of a -axis oriented YBa sub 2 Cu sub 3 O sub 7 minus. delta. thin film epitaxially grown on NdGaO sub 3 (110) by 95 MHz magnetron sputtering
Journal Article
·
Mon Sep 09 00:00:00 EDT 1991
· Applied Physics Letters; (United States)
·
OSTI ID:5342497
[ital In] [ital situ] layer-by-layer growth of YBa[sub 2]Cu[sub 3]O[sub 7[minus][ital x]] thin films by multitarget sputter deposition
Journal Article
·
Sun Dec 06 23:00:00 EST 1992
· Applied Physics Letters; (United States)
·
OSTI ID:7165962
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
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
DIFFRACTION
FILMS
HIGH-TC SUPERCONDUCTORS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SCATTERING
SPUTTERING
SUPERCONDUCTING FILMS
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL STRUCTURE
DIFFRACTION
FILMS
HIGH-TC SUPERCONDUCTORS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SCATTERING
SPUTTERING
SUPERCONDUCTING FILMS
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES