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Crystal growth and structure analysis of Sm2−xCexCuO4

Published online by Cambridge University Press:  31 January 2011

H. Takeda
Affiliation:
Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo 101–0062, Japan
M. Okuno
Affiliation:
Department of Earth Sciences, Kanazawa University, Kanazawa 920–1192, Japan
M. Ohgaki
Affiliation:
Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo 101–0062, Japan
K. Yamashita
Affiliation:
Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, Tokyo 101–0062, Japan
T. Matsumoto
Affiliation:
Department of Earth Sciences, Kanazawa University, Kanazawa 920–1192, Japan
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Abstract

The phase diagram of the Sm2O3–CuO system was investigated by the combination of the differential thermal analysis and the quench method. The results showed that Sm2CuO4 incongruently melts at about 1220 °C, and that the solid Sm2CuO4 exists in equilibrium with the liquid consisting of 81–95 mol% CuO in the range of 1060–1220 °C. On the basis of the phase diagram, Sm2−xCexCuO4 single crystals were grown by the traveling solvent floating zone method. The crystal structure [space group I4/mmm, a = 3.917(1), c 4 11.899(2) Å] has been refined using single-crystal x-ray diffraction data with a precision corresponding to an R index of 0.02.

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Articles
Copyright
Copyright © Materials Research Society 2000

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