Journal
MATERIALS RESEARCH BULLETIN
Volume 37, Issue 1, Pages 133-140Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0025-5408(01)00805-4
Keywords
layered compounds; oxides; fluorides; X-ray diffraction; crystal structure
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New Dion-Jacobson-type double-layered oxyfluoride perovskites, RbLnTiNbO(6)F (Ln = La, Pr, Nd), have been synthesized. Rietveld refinement of X-ray powder diffraction data (space group P4/mmm) shows the compounds to be isostructural with RbSrNb2O6F. Curie-Weiss behavior is observed in the Pr, Nd compounds. This series further illuminates the substitutional variations, both cationic and anionic, that can be achieved within the RbLaNb2O7 structure type. (C) 2002 Elsevier Science Ltd. All rights reserved.
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