Structural disorder and classical spin-glass behaviour in Ba3Fe2SbO9

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dc.contributor.authorAuckett, JEen_AU
dc.contributor.authorMiiller, Wen_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorKimpton, JAen_AU
dc.contributor.authorLing, CDen_AU
dc.date.accessioned2015-12-28T05:45:25Zen_AU
dc.date.available2015-12-28T05:45:25Zen_AU
dc.date.issued2014-09-08en_AU
dc.date.statistics2015-12-28en_AU
dc.description.abstractA new 6H-type perovskite Ba3Fe2SbO9 has been synthesised for the first time. Synchrotron and neutron powder diffraction data reveal complete structural disorder between Sb and Fe in the octahedral perovskite B sites. This results in classical spin-glass behaviour, which we characterise using magnetic susceptibility, magnetisation, and heat capacity measurements, although some evidence is seen for a transition to a partially ordered spin-glass like state below 24 K. The behaviour of Ba3Fe2SbO9 is compared with that of the 6H-type perovskite Ba3Fe2WO9, which displays antiferromagnetic character below TN = 290K before entering a glassy state below Tf = 60 K. Differences between the magnetism in these two phases are discussed in terms of the complete structural disorder between the Fe and Sb ions in the former case, versus partial disorder (limited to the distribution and local orientation of Fe-W and Fe-Fe dimer units) in the latter. © CSIRO 1996-2021en_AU
dc.identifier.citationAuckett, J. E., Miiller, W., Avdeev, M., Kimpton, J. A., & Ling, C. D. (2014). Structural disorder and classical spin-glass behaviour in Ba3Fe2SbO9. Australian Journal of Chemistry, 67(11), 1612-1617. doi: 10.1071/CH14389en_AU
dc.identifier.govdoc6364en_AU
dc.identifier.issn1445-0038en_AU
dc.identifier.issue11en_AU
dc.identifier.journaltitleAustralian Journal of Chemistryen_AU
dc.identifier.pagination1612-1617en_AU
dc.identifier.urihttps://doi.org/10.1071/CH14389en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/6504en_AU
dc.identifier.volume67en_AU
dc.language.isoenen_AU
dc.publisherCSIRO Publishingen_AU
dc.subjectPerovskiteen_AU
dc.subjectSynchrotronsen_AU
dc.subjectNeutronsen_AU
dc.subjectDataen_AU
dc.subjectAntiferromagnetismen_AU
dc.subjectMagnetismen_AU
dc.titleStructural disorder and classical spin-glass behaviour in Ba3Fe2SbO9en_AU
dc.typeJournal Articleen_AU
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