Crystal chemistry of Ln′Ln″Ba2Cu2Ti2O11 (Ln = lanthanide, Y) materials

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

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)


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) concertedly order to form distinct CuO2 2- 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
Pages (from-to)1355-1360
Number of pages6
JournalChemistry of Materials
Issue number7
Publication statusPublished - 1995

ASJC Scopus subject areas

  • Materials Chemistry
  • Materials Science(all)

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