Investigating the order-disorder phase transition in Nd2-xYxZr2O7via diffraction and spectroscopy

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dc.contributor.authorBlanchard, PERen_AU
dc.contributor.authorLiu, Sen_AU
dc.contributor.authorKennedy, BJen_AU
dc.contributor.authorLing, CDen_AU
dc.contributor.authorZhang, Zen_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorCowie, BCCen_AU
dc.contributor.authorThomsen, Len_AU
dc.contributor.authorJang, LYen_AU
dc.date.accessioned2014-09-17T01:40:08Zen_AU
dc.date.available2014-09-17T01:40:08Zen_AU
dc.date.issued2013-01-01en_AU
dc.date.statistics2014-09-17en_AU
dc.description.abstractThe pyrochlore-defect fluorite phase transition in the mixed-metal zirconate Nd2-xYxZr2O7 (0 <= x <= 2) solid solution was investigated using synchrotron X-ray and neutron diffraction, as well as X-ray absorption spectroscopy. Diffraction analysis revealed a two-phase region between 1.0 <= x <= 1.2. In the pyrochlore phase, Zr L-3-edge XANES analysis demonstrated a gradual change in the local coordination environment of the B site with increasing Y content that was consistent with an increase in disorder. Although Y L-3-edge XANES analysis suggested that the Y cations remained in an ordered coordination environment in the pyrochlore phase, disorder did gradually increase once the fluorite phase formed. It was found that Y cations prefer an ordered coordination environment near the phase boundary whereas Zr cations prefer a disordered coordination environment. © 2013, Royal Society of Chemistryen_AU
dc.identifier.citationBlanchard, P. E. R., Liu, S., Kennedy, B. J., Ling, C. D., Zhang, Z., Avdeev, M., Cowie, B. C. C., Thomsen, L., & Jang, L. Y. (2013). Investigating the order-disorder phase transition in nd2-xyxzr2o7 via diffraction and spectroscopy. Dalton Transactions, 42(41), 14875-14882. doi:10.1039/c3dt51420jen_AU
dc.identifier.govdoc5435en_AU
dc.identifier.issn1477-9226en_AU
dc.identifier.issue41en_AU
dc.identifier.journaltitleDalton Transactionsen_AU
dc.identifier.pagination14875-14882en_AU
dc.identifier.urihttp://dx.doi.org/10.1039/c3dt51420jen_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/5866en_AU
dc.identifier.volume42en_AU
dc.language.isoenen_AU
dc.publisherRoyal Society of Chemistryen_AU
dc.subjectPyrochloreen_AU
dc.subjectZirconiumen_AU
dc.subjectOxidesen_AU
dc.subjectRaman spectroscopyen_AU
dc.subjectDiffractionen_AU
dc.subjectSpectroscopyen_AU
dc.titleInvestigating the order-disorder phase transition in Nd2-xYxZr2O7via diffraction and spectroscopyen_AU
dc.typeJournal Articleen_AU
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