Synthesis and Rietveld Structure Refinement of Americium Pyrochlore Am2Zr2O7

BELIN, R. C.; VALENZA, P. J.; RAISON, Philippe; TILLARD, M.

doi:10.1016/j.jallcom.2006.11.107

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Synthesis and Rietveld Structure Refinement of Americium Pyrochlore Am2Zr2O7

The polycrystalline americium pyrochloreAm2Zr2O7 was recently synthesized from 241AmO2 and ZrO2 powders and its structurewas investigated by X-ray powder pattern fitting. A Rietveld analysis was performed using the computer program JANA 2000. Am2Zr2O7 crystallizes in the space group Fd-3m with a = 10.66849(4) A° . For the less symmetrical of the two independent oxygen atoms, the unconstrained parameter x, which is characteristic of the pyrochlore structure, was found to be 0.339.

BELIN R. C.; VALENZA P. J.; RAISON Philippe; TILLARD M.;

2008-04-18

ELSEVIER SCIENCE SA

JRC44966

0925-8388,

http://dx.doi.org/10.1016/j.jallcom.2006.11.107, https://publications.jrc.ec.europa.eu/repository/handle/JRC44966,

10.1016/j.jallcom.2006.11.107,

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