Monte Carlo simulation of reorientation driven by oxygen transport in YBa2Cu3O6.5

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Abstract

We studied the effect of an external field on the rearrangement of hopping particles in a quarter-filled lattice-gas model introduced to investigate the oxygen ordering in YBa2Cu3Ox. In the fourfold-degenerate, cell-doubled phase of YBa2Cu3O6.5, oxygen diffusion is anisotropic due to the presence of Cu-O chains. Monte Carlo simulations show that these chains prefer an orientation parallel to the applied field. In the presence of an applied field, the two possible chain directions are distinguished analytically by using a a simple mean-field approximation.

Original languageEnglish
Pages (from-to)13614-13617
Number of pages4
JournalPhysical Review B
Volume43
Issue number16
DOIs
Publication statusPublished - Jan 1 1991

ASJC Scopus subject areas

  • Condensed Matter Physics

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