%0 Journal Article
%A Klobes, B.
%A Finkeldei, S.
%A Röhrig, Wilbert
%A Bosbach, D.
%A Hermann, R. P.
%T Hyperfine interactions in and lattice parameters of pyrochlore and defect fluorite ${\left({\mathrm{Eu}}_{1-x}{\mathrm{Nd}}_{x}\right)}_{2}{\mathrm{Zr}}_{m2}{\mathrm{O}}_{7}$
%J Journal of physics and chemistry of solids
%V 79
%@ 0022-3697
%C New York, NY [u.a.]
%I Elsevier
%M FZJ-2014-06320
%P 43–48
%D 2015
%X Pyrochlore and defect fluorite (Eu1−xNdx)2Zr2O7 compounds (x = 0, 0.5 and 0.75) synthesized by a wet chemicalapproach were investigated using temperature dependent high energy X-ray diffraction as well as 151Eu Mössbauerspectroscopy. Diffraction data reveals an increase in lattice parameter with increasing Nd content, an increase thatis disproportionally large between x = 0.5 and 0.75. The 151Eu Mössbauer spectral parameters, i.e. isomer shift andquadrupole splitting, fall in separate regions for pyrochlore and defect fluorite type compounds. Between 80 - 350 K,the impact of the order-disorder, i.e. pyrochlore to defect fluorite, transition on isomer shift and quadrupole splittingis found to exceed the one due to lattice expansion.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000349505000005
%R 10.1016/j.jpcs.2014.11.011
%U https://juser.fz-juelich.de/record/172889