TY  - JOUR
AU  - Popov, V. V.
AU  - Zubavichus, Ya. V.
AU  - Menushenkov, Alexey
AU  - Yaroslavtsev, A. A.
AU  - Petrunin, V. F.
AU  - Korovin, S. A.
AU  - Trofimova, N. N.
AU  - Kulik, E. S.
TI  - 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
JO  - Russian journal of inorganic chemistry
VL  - 59
IS  - 4
SN  - 1531-8613
CY  - Moscow
PB  - MAIK Nauka/Interperiodica Publ.
M1  - PUBDB-2015-00801
SP  - 279 - 285
PY  - 2014
N1  - (c) leiades Publishing, Ltd. Post referee full text in progress.
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000334500100001
DO  - DOI:10.1134/S0036023614040147
UR  - https://bib-pubdb1.desy.de/record/206296
ER  -