Zig-zag magnetic ordering in honeycomb-layered Na3Co2SbO6

dc.contributor.authorWong, Cen_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorLing, CDen_AU
dc.date.accessioned2021-01-28T05:36:57Zen_AU
dc.date.available2021-01-28T05:36:57Zen_AU
dc.date.issued2016-11-01en_AU
dc.date.statistics2021-01-12en_AU
dc.description.abstractNa3Co2SbO6 is a layered oxide with a hexagonal O3-type structure, in which CdI2-type edge-sharing MO6 octahedral layers are intercalated by Na. The MO6 octahedral layer in turn adopts a honeycomb ordering pattern of magnetic (S=3/2) Co2+ sites surrounding isolated non-magnetic Sb5+ sites. Magnetic susceptibility measurements show that Na3Co2SbO6 orders antiferromagnetically below TN=8.3 K, with an effective magnetic moment of 5.22 μB (indicating a strong orbital contribution above the expected spin-only value of ). While a honeycomb arrangement of magnetic cations could, in principle, support a co-operative long-range-ordered magnetic structure in which all nearest neighbors are antiferromagnetic with respect to one another, symmetry analysis of low-temperature neutron powder diffraction data shows that it instead adopts a partially frustrated ‘zig-zag’ ordering in which 2/3 of nearest-neighbor interactions are ferromagnetic and 1/3 are antiferromagnetic. The low Néel temperature and Weiss constant of underlines the presence of significant frustration of the expected strong superexchange interactions among Co2+. © 2016 Elsevier Inc.en_AU
dc.identifier.citationWong, C., Avdeev, M., & Ling, C. D. (2016) Zig-zag magnetic ordering in honeycomb-layered Na3Co2SbO6. Journal of Solid State Chemistry, 243, 18-22. doi:10.1016/j.jssc.2016.07.032en_AU
dc.identifier.issn0022-4596en_AU
dc.identifier.journaltitleJournal of Solid State Chemistryen_AU
dc.identifier.pagination18-22en_AU
dc.identifier.urihttps://doi.org/10.1016/j.jssc.2016.07.032en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10272en_AU
dc.identifier.volume243en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectNeutron diffractionen_AU
dc.subjectHoneycomb structuresen_AU
dc.subjectOxidesen_AU
dc.subjectAntiferromagnetic materialsen_AU
dc.subjectCationsen_AU
dc.subjectMagnetic momentsen_AU
dc.titleZig-zag magnetic ordering in honeycomb-layered Na3Co2SbO6en_AU
dc.typeJournal Articleen_AU
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