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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