Temperature-Dependent Structural Behavior of Bi0.5Nd1.5Ru2O7

The structure of the Bi-doped pyrochlore, Bi0.5Nd1.5Ru2O7has been studied between 20 and 300 K using powder synchrotron diffraction methods. The structure shows an abupt change in the Bi(Nd)–O and Ru–O contacts near 200 K as a consequence of a metal–semiconductor transition. There is a marked hyster...

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Bibliographic Details
Published in:Journal of solid state chemistry 1999-05, Vol.144 (2), p.467-469
Main Authors: Field, M.D., Kennedy, B.J., Hunter, B.A., Vogt, T.
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Crystalline state (including molecular motions in solids)
Crystallographic aspects of phase transformations
pressure effects
Exact sciences and technology
Inorganic compounds
Physics
Structure of solids and liquids
crystallography
Structure of specific crystalline solids
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Summary:The structure of the Bi-doped pyrochlore, Bi0.5Nd1.5Ru2O7has been studied between 20 and 300 K using powder synchrotron diffraction methods. The structure shows an abupt change in the Bi(Nd)–O and Ru–O contacts near 200 K as a consequence of a metal–semiconductor transition. There is a marked hysteresis in the structural parameters upon rewarming the sample.
ISSN:0022-4596
1095-726X
DOI:10.1006/jssc.1999.8171