Synthesis and structural determination of the disordered bixbyite Cu3-xSb1+xO5.5+3x/2 with spin-glass behaviour

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dc.contributor.authorSpasovski, Men_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorSöhnel, Ten_AU
dc.date.accessioned2021-08-25T04:04:43Zen_AU
dc.date.available2021-08-25T04:04:43Zen_AU
dc.date.issued2019-01-28en_AU
dc.date.statistics2021-07-12en_AU
dc.description.abstractThe ternary copper antimony oxide Cu3-xSb1+xO5.5+3x/2 (x=0.23) has been synthesized under 0.8–1.3 MPa pO2 at 1022–1082 °C. Rietveld refinements of X-ray and neutron powder diffraction patterns concluded that the oxide adopts a bixbyite type structure, crystallising in the cubic space group Ia-3 with the unit cell parameter a=9.61164(4) Å at room temperature from powder neutron diffraction data. The cationic 8b and 24d sites were found to be occupationally disordered where both Cu and Sb could be found on both sites. This is supported by X-ray absorption spectroscopy experiments showing more than one possible Cu environment. There was a significant net deficiency of oxygen in the compound which was first inferred from observations of a thermochromic-like phenomena and also seen from in situ high temperature neutron diffraction experiments. Magnetic susceptibility and magnetization measurements show paramagnetic behaviour with spin-glass like transition below 6 K. © 1999-2021 John Wiley & Sons, Inc.en_AU
dc.identifier.citationSpasovski, M., Avdeev, M., & Söhnel, T. (2019). Synthesis and structural determination of the disordered bixbyite Cu3-xSb1+xO5.5+3x/2 with spin-glass behaviour. Chemistry - An Asian Journal, 14(8), 1286-1292. doi:10.1002/asia.201801835en_AU
dc.identifier.issn1861-471Xen_AU
dc.identifier.issue8en_AU
dc.identifier.journaltitleChemistry - An Asian Journalen_AU
dc.identifier.pagination1286-1292en_AU
dc.identifier.urihttps://doi.org/10.1002/asia.201801835en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11494en_AU
dc.identifier.volume14en_AU
dc.language.isoenen_AU
dc.publisherWileyen_AU
dc.subjectCopperen_AU
dc.subjectOxidesen_AU
dc.subjectX-ray diffractionen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectMagnetizationen_AU
dc.subjectMagnetic susceptibilityen_AU
dc.titleSynthesis and structural determination of the disordered bixbyite Cu3-xSb1+xO5.5+3x/2 with spin-glass behaviouren_AU
dc.typeJournal Articleen_AU
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