X-ray crystal-truncation-rod analysis of untwinned YBa sub 2 Cu sub 3 O sub 7 minus. delta. single crystals: The growth-termination plane
Journal Article
·
· Physical Review, B: Condensed Matter; (United States)
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973 (United States)
- Department of Physics and Texas Center for Superconductivity, University of Houston, Houston, Texas 77204-5506 (United States)
Crystal truncation rods (CTR's), or x-ray scattering from a terminated surface of a three-dimensional single crystal, were measured for untwinned single crystals of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}}. An expression for the intensity along the CTR's, which may be directly applied to a structure with a complicated unit cell, was derived from a Bloch wave expansion of the electron density. Data analysis using this expression indicates that the most probable metal-containing layer at the terminating surface of a flux-grown YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} single crystal is the Y layer.
- DOE Contract Number:
- AC02-76CH00016; W-31-109-ENG-38
- OSTI ID:
- 5002514
- Journal Information:
- Physical Review, B: Condensed Matter; (United States), Vol. 45:9; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
BARIUM OXIDES
CRYSTAL STRUCTURE
COPPER OXIDES
YTTRIUM OXIDES
CRYSTAL GROWTH
DATA ANALYSIS
HIGH-TC SUPERCONDUCTORS
MONOCRYSTALS
X-RAY DIFFRACTION
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
CRYSTALS
DIFFRACTION
OXIDES
OXYGEN COMPOUNDS
SCATTERING
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360202* - Ceramics
Cermets
& Refractories- Structure & Phase Studies
BARIUM OXIDES
CRYSTAL STRUCTURE
COPPER OXIDES
YTTRIUM OXIDES
CRYSTAL GROWTH
DATA ANALYSIS
HIGH-TC SUPERCONDUCTORS
MONOCRYSTALS
X-RAY DIFFRACTION
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
CRYSTALS
DIFFRACTION
OXIDES
OXYGEN COMPOUNDS
SCATTERING
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360202* - Ceramics
Cermets
& Refractories- Structure & Phase Studies