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

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

Northwestern University

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	1355-1360
Number of pages	6
Journal	Chemistry of Materials
Volume	7
Issue number	7
Publication status	Published - 1995

ASJC Scopus subject areas

Materials Chemistry
Materials Science(all)

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

abstract = "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.",

author = "Greenwood, {Kevin B.} and Sarjeant, {Gregory M.} and Poeppelmeier, {Kenneth R} and Salvador, {Paul A.} and Mason, {Thomas O} and B. Dabrowski and K. Rogacki and Z. Chen",

year = "1995",

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T1 - Crystal chemistry of Ln′Ln″Ba2Cu2Ti2O11 (Ln = lanthanide, Y) materials

AU - Greenwood, Kevin B.

AU - Sarjeant, Gregory M.

AU - Poeppelmeier, Kenneth R

AU - Salvador, Paul A.

AU - Mason, Thomas O

AU - Dabrowski, B.

AU - Rogacki, K.

AU - Chen, Z.

PY - 1995

Y1 - 1995

N2 - 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.

AB - 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.

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