Record Details

Title:
High local disorder in Tb$_{2}$Hf$_{2}$O$_{7}$ pyrochlore oxide nanocrystals
Affiliation(s):
XFEL.EU staff
Topic:
Scientific area:
Abstract:
The process of Tb$_{2}$Hf$_{2}$O$_{7}$ nanocrystals formation upon annealing to 1600°C was investigated by means of X-ray absorption fine structure (XAFS) spectroscopy combined with X-ray diffraction (XRD) and pair distribution function (PDF) analysis. The structure ordering and the growth of nanocrystals upon annealing were estimated independently from XRD patterns and PDF. The probable content of Tb$^{4+}$ ions in Tb$_{2}$Hf$_{2}$O$_{7}$ was estimated from XANES. All studies indicate a high disorder and a large number of local structure defects in Tb$_{2}$Hf$_{2}$O$_{7}$ pyrochlore oxide.
Imprint:
2016
conference Information:
Journal of Physics: Conference Series (712), 012113 (2016)
External related publications:
Language(s):
English


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 Record created 2016-12-05, last modified 2017-03-16

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