%0 Journal Article
%A Popov, V. V.
%A Zubavichus, Ya. V.
%A Menushenkov, Alexey
%A Yaroslavtsev, A. A.
%A Petrunin, V. F.
%A Korovin, S. A.
%A Trofimova, N. N.
%A Kulik, E. S.
%T Short- and long-range order balance in nanocrystalline Gd<sub>2</sub>Zr<sub>2</sub>O<sub>7</sub> powders with a fluorite-pyrochlore structure
%J Russian journal of inorganic chemistry
%V 59
%N 4
%@ 1531-8613
%C Moscow
%I MAIK Nauka/Interperiodica Publ.
%M PUBDB-2015-00801
%P 279 - 285
%D 2014
%Z (c) leiades Publishing, Ltd. Post referee full text in progress.
%X A series of nanocrystalline Gd<sub>2</sub>Zr<sub>2</sub>O<sub>7</sub> powders has been studied using a combination of X-ray diffraction and X-ray spectroscopy with synchrotron radiation. It has been shown that isothermal annealing of an X-ray amorphous mixed hydroxide first leads to the formation of an oxide nanomaterial with a defect fluorite structure and clearly pronounced nonequivalence of the local environment of the Gd<sup>3+</sup> and Zr<sup>4+</sup> ions. Increasing heat treatment temperature results in initiation and growth of nanodomains with pyrochlore-type superstructure ordering of cations inside bulkier crystallites of defect fluorite. To adequately describe the evolution of the real nanocrystalline structure of gadolinium zirconate, a combination of X-ray structural methods sensitive to the averaged crystal structure and local atomic structure should be used.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000334500100001
%R 10.1134/S0036023614040147
%U https://bib-pubdb1.desy.de/record/206296