Oxygen ordering in the basal plane of YBa sub 2 Cu sub 3 O sub z : Ground states

Journal Article · Sun Feb 18 23:00:00 EST 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.64.970· OSTI ID:6965170

Stolze, J ^[1]

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1. Institut fuer Physik, Universitaet Dortmund, Postfach 500 500, D-4600 Dortmund 50, Federal Republic of Germany (DE)

The ground-state configurations of a lattice-gas model introduced by de Fontaine, Wille, and Moss for the distribution of empty and occupied oxygen sites in the Cu-O basal plane of the high-temperature superconductor YBa{sub 2}Cu{sub 3}O{sub {ital z}} are determined. It is shown rigorously that the configurations proposed earlier by Wille and de Fontaine basically exhaust the set of possible stable ground-state structures. States of partial order are excluded, except for special values of the interaction constants.

• OSTI ID: 6965170
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 64:8; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL MODELS
ELEMENTS
ENERGY LEVELS
GROUND STATES
HAMILTONIANS
ISING MODEL
MAGNETIZATION
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
NONMETALS
ORDER PARAMETERS
ORDER-DISORDER TRANSFORMATIONS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
QUANTUM OPERATORS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES