Crystal Chemistry of Ln'Ln”Ba2Cu2Ti2O11 (Ln = Lanthanide, Y) Materials

Kevin B. Greenwood, Gregory M. Sarjeant, Kenneth Poeppelmeier*, Paul A. Salvador, Thomas O Mason, B. Dabrowski, K. Rogacki, Z. Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


The stabilization of the quadruple perovskite structure Ln2Ba2Cu2Ti2O11 as a function of the constituent lanthanides has been investigated. Powder X-ray data show that the mixed A-site compositions Ln'Ln”Ba2Cu2Ti2O11 (Ln'Ln” = LaY, LaHo, LaEr, and NdDy) conceitedly order to form distinct CuCO22- and TiO2 double layers. In addition the A cations (Ln’, Ln”, and Ba) order on three distinct sites, with the smaller lanthanide (Ln”) occupying the 8-coordinate site between contracted copper-oxygen planes.

Original languageEnglish (US)
Pages (from-to)1355-1360
Number of pages6
JournalChemistry of Materials
Issue number7
StatePublished - Jan 1 1995

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry


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