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Monte Carlo studies of oxygen ordering in the YBa sub 2 Cu sub 3 minus x A sub x O sub 7 minus. delta. systems ( A =Ga,Al)

Journal Article · · Physical Review (Section) B: Condensed Matter; (USA)
;  [1]
  1. Department of Physics and Astronomy and The Center for Fundamental Materials Research, Michigan State University, East Lansing, Michigan 48824-1116 (US)
Monte Carlo simulation with constant oxygen concentration (Kawasaki dynamics) of a lattice-gas model with anisotropic interaction is used to explore the effects of thermal quenching on oxygen ordering in the basal plane of YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} and related systems. The oxygen structure factor is calculated for various quenching conditions and for different oxygen concentrations. The growth of the orthorhombic domain is monitored through the {bold q} dependence of the oxygen structure factor along the {ital a} and {ital b} directions. The effect of substituting Ga{sup 3+} or Al{sup 3+} ions at Cu(1) chain sites on the oxygen ordering is also discussed within the framework of this model.
OSTI ID:
5376118
Journal Information:
Physical Review (Section) B: Condensed Matter; (USA), Journal Name: Physical Review (Section) B: Condensed Matter; (USA) Vol. 40:10; ISSN PRBMD; ISSN 0163-1829
Country of Publication:
United States
Language:
English