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Crystal structure and X-ray diffraction data of a new hexagonal perovskite compound, Ba4CuNb3O12

Published online by Cambridge University Press:  05 March 2012

N. Kumada ,
W. Zhang ,
Q. Dong ,
T. Mochizuki ,
Y. Yonesaki ,
T. Takei  and
N. Kinomura
N. Kumada*
Affiliation:
Department of Research Interdisciplinary, Graduate School of Medicine and Engineering, University of Yamanashi, Miyamae-cho 7-32, Kofu, Yamanashi 400-8511, Japan
W. Zhang
Affiliation:
Department of Research Interdisciplinary, Graduate School of Medicine and Engineering, University of Yamanashi, Miyamae-cho 7-32, Kofu, Yamanashi 400-8511, Japan
Q. Dong
Affiliation:
Department of Research Interdisciplinary, Graduate School of Medicine and Engineering, University of Yamanashi, Miyamae-cho 7-32, Kofu, Yamanashi 400-8511, Japan
T. Mochizuki
Affiliation:
Department of Research Interdisciplinary, Graduate School of Medicine and Engineering, University of Yamanashi, Miyamae-cho 7-32, Kofu, Yamanashi 400-8511, Japan
Y. Yonesaki
Affiliation:
Department of Research Interdisciplinary, Graduate School of Medicine and Engineering, University of Yamanashi, Miyamae-cho 7-32, Kofu, Yamanashi 400-8511, Japan
T. Takei
Affiliation:
Department of Research Interdisciplinary, Graduate School of Medicine and Engineering, University of Yamanashi, Miyamae-cho 7-32, Kofu, Yamanashi 400-8511, Japan
N. Kinomura
Affiliation:
Department of Research Interdisciplinary, Graduate School of Medicine and Engineering, University of Yamanashi, Miyamae-cho 7-32, Kofu, Yamanashi 400-8511, Japan
*
a)Author to whom correspondence should be addressed. Electronic mail: kumada@yamanashi.ac.jp
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Abstract

A new barium copper niobate, Ba4CuNb3O12, was successfully prepared by high-temperature solid-state reaction in an inert atmosphere. Rietveld-refinement analysis of the XRD data of the compound showed that it has the 8H-type hexagonal perovskite structure with space group P63/mmc (#194), a = 5.830(1) Å, c = 19.123(1) Å, and chemical composition of Ba4Cu1.84Nb2.16O12-δ.

Keywords

barium copper niobate8H-type hexagonal perovskiteX-ray powder diffractionRietveld method

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Type
Technical Articles
Information
Powder Diffraction , Volume 26 , Issue 3 , September 2011 , pp. 244 - 247
Copyright
Copyright © Cambridge University Press 2011

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