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Dynamical scaling of oxygen ordering in YBa sub 2 Cu sub 3 O sub 7 minus. delta

Journal Article · · Physical Review Letters; (USA)
; ; ; ;  [1]
  1. Riso National Laboratory, DK-400 Roskilde, (Denmark). Department of Physics Technical University of Denmark, Lyngby (Denmark). Department of Structural Properties of Materials, Building 307
Comptuer simulation on a two-dimensional anisotropic lattice-gas model of oxygen ordering in high-{ital T}{sub {ital c}} supeconductors of the YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} -type shows that the ordering dynamics obey algebraic growth laws which are different in the ortho-I and ortho-II phases. It is possible to relate this dynamical scaling behavior to a similar scaling in the experimentally observed temporal variation of the superconductivity transition temperature, hence suggesting a specific coupling between the coherence of oxygen order in the basal Cu-O planes and the superconducting state.
OSTI ID:
5638259
Journal Information:
Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 66:4; ISSN PRLTA; ISSN 0031-9007
Country of Publication:
United States
Language:
English