Structures and phase diagram for the system CaTiO3-La2/3TiO3

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dc.contributor.authorZhang, ZMen_AU
dc.contributor.authorLumpkin, GRen_AU
dc.contributor.authorHoward, CJen_AU
dc.contributor.authorKnight, KSen_AU
dc.contributor.authorWhittle, KRen_AU
dc.contributor.authorOsaka, Ken_AU
dc.date.accessioned2010-09-02T02:12:48Zen_AU
dc.date.available2010-09-02T02:12:48Zen_AU
dc.date.issued2007-03en_AU
dc.date.statistics2007-03en_AU
dc.description.abstractHigh-resolution neutron and synchrotron X-ray powder diffraction have been used to examine various compositions across the system (1−x)CaTiO3−xLa2/3TiO3. The structures at room temperature were determined according to composition: in Pbnm for 0≤x≤0.5, Ibmm for 0.5<x<0.7, then I4/mcm for 0.7x≤0.9, and finally in Cmmm for x≥0.9. Although the four structures are the same as those proposed previously in an X-ray diffraction study, the phase boundaries are somewhat different, in particular the Pbnm↔Ibmm phase boundary has been extended from x≤0.4 to x>0.5 in the current study based on our high-resolution neutron diffraction data. From in situ measurements to identify structures above room temperature, an approximate composition–temperature phase diagram has been constructed, involving four temperature-induced phase transitions: Pbnm→I4/mcm, Ibmm→I4/mcm, I4/mcm→Pm3¯m and Cmmm→P4/mmm. © 2007, Elsevier Ltd.en_AU
dc.identifier.citationZhang, Z., Lumpkin, G. R., Howard, C. J., Knight, K. S., Whittle, K. R., & Osaka, K. (2007). Structures and phase diagram for the system CaTiO3-La2/3TiO3. Journal of Solid State Chemistry, 180(3), 1083-1092. doi:10.1016/j.jssc.2007.01.005en_AU
dc.identifier.govdoc2583en_AU
dc.identifier.issn0022-4596en_AU
dc.identifier.issue3en_AU
dc.identifier.journaltitleJournal of Solid State Chemistryen_AU
dc.identifier.pagination1083-1092en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.jssc.2007.01.005en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/2423en_AU
dc.identifier.volume180en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectPerovskitesen_AU
dc.subjectCrystal structureen_AU
dc.subjectPhase diagramsen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectSynchrotronsen_AU
dc.subjectCationsen_AU
dc.titleStructures and phase diagram for the system CaTiO3-La2/3TiO3en_AU
dc.typeJournal Articleen_AU
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