Trigonal phases in YBa2Cu3O6.5

D. J. Li*, J. P. Zhang, J. P. Thiel, L. D. Marks

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Trigonal ordering is evident from electron microscopy of quenched powders of composition YBa2Cu3O6.5. The powders are a mixture of phases, some of which are based upon two trigonal phases with a = 0.54 and c = 0.66 nm. In the first the yttrium and barium atoms order on the (111) planes of the parent perovskite structure rather than the (001) while in the second stacking sequence the yttrium layer of this structure is interchanged with one of the copper layers.

Original languageEnglish (US)
Pages (from-to)165-172
Number of pages8
JournalJournal of Solid State Chemistry
Issue number2
StatePublished - Aug 1989

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry


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