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Effect of substitutional impurities (Al,Co,Fe,Ga) on the orthorhombic phase of YBa sub 2 Cu sub 3 O sub 7 minus. delta

Journal Article · · Physical Review (Section) B: Condensed Matter; (USA)
;  [1]
  1. Institute for Theoretical Physics, Freie Universitaet Berlin, Arnimallee 14, D-1000 Berlin 33, West Germany (DE)
+ Show Author Affiliations
Structural changes in YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} resulting from alloying with Al, Co, Fe, and Ga are studied theoretically. A bond model for the various interatomic interactions yields results indicating that the tetragonal phase seemingly observed by x-ray diffraction experiments for YBa{sub 2}(Cu{sub 1{minus}x}M{sub x}){sub 3}O{sub 7+{ital y}} ({ital M}=Al,Co,Fe; {ital x}{gt}0.03) consists of differently oriented orthorhombic domains. Doping with Al,Co,Fe and domain formation causes uptake of excess oxygen.
OSTI ID:
5375964
Journal Information:
Physical Review (Section) B: Condensed Matter; (USA), Journal Name: Physical Review (Section) B: Condensed Matter; (USA) Vol. 40:10; ISSN 0163-1829; ISSN PRBMD
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
ALUMINIUM ADDITIONS
ALUMINIUM ALLOYS
BARIUM COMPOUNDS
BARIUM OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COBALT ADDITIONS
COBALT ALLOYS
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTAL-PHASE TRANSFORMATIONS
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
GALLIUM ADDITIONS
GALLIUM ALLOYS
IRON ADDITIONS
IRON ALLOYS
MINERALS
ORTHORHOMBIC LATTICES
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PEROVSKITE
PEROVSKITES
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
QUANTITY RATIO
SCATTERING
SUBSTOICHIOMETRY
SUPERCONDUCTIVITY
TETRAGONAL LATTICES
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES