Cu5SbO6 – synchrotron, neutron diffraction studies and magnetic properties

dc.contributor.authorSöhnel, Ten_AU
dc.contributor.authorRey, Een_AU
dc.contributor.authorLing, CDen_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorJohannessen, Ben_AU
dc.contributor.authorWallwork, KSen_AU
dc.contributor.authorKremer, RKen_AU
dc.contributor.authorWhangbo, MHen_AU
dc.date.accessioned2021-10-14T00:03:12Zen_AU
dc.date.available2021-10-14T00:03:12Zen_AU
dc.date.issued2011-02-04en_AU
dc.date.statistics2021-09-07en_AU
dc.description.abstractOne very interesting compound in the system Cu/Sb/O is the mixed-valent Cu5SbO6 = (Cu1+(Cu2+ 2/3Sb5+ 1/3)O2) which is crystallising in the high temperature modification as a modified Delafossite structure type. Compounds like Delafossite, CuFeO2, is one of the few groups of compounds showing the rare property of multiferroic behaviour. In Cu5SbO6 the magnetically active brucite-like CuO2 layer is diluted in an ordered fashion with nonmagnetic Sb5+. Cu5SbO6 also shows a phase transition, which exhibits a rather complicated behaviour. It depends on the temperature and the reaction conditions (reactants for preparation, pressure, open or closed system). High resolution Synchrotron and neutron powder diffraction measurements could clearly distinguish between the high temperature and the low temperature modification and reveal an ordering (HT-modification) / disordering (LT-modification) effect of the Sb5+ and Cu2+ ions in the brucite-like layers. The LT-modification can also be assigned to what had wrongly been described in the literature as Cu4.5SbO5. XANES Cu-K edge measurements and NPD measurements should clarify a potential oxidation of the Cu1+ to Cu2+ and a connected additional inclusion of oxygen in the structure. According to magnetic measurements and DFT calculations the magnetic structure in Cu5SbO6 can be described with a short range ferromagnetic-antiferromagnetic interaction model of the (Cu2+) pairs in the (Cu2+ 2/3Sb5+ 1/3)O2 layers with a super-exchange via the nonmagnetic Sb5+ atoms. The systematic replacement of the non-magnetic Sb5+ with magnetically active M5+ ions should change the magnetic properties dramatically and could lead to an long range ordering in the system. First results of Mn and Mo doping will also be presented.en_AU
dc.identifier.citationSöhnel, T., Rey, E., Ling, C., Avdeev, M., Johannessen, B., Wallwork, K., Kremer, R., & Whangbo, M.-H. (2011). Cu5SbO6 – synchrotron, neutron diffraction studies and magnetic properties. Paper presented to the Australian and New Zealand Institutes of Physics 35th Annual Condensed Matter and Materials Meeting, Charles Sturt University, Wagga Wagga, NSW, 2nd - 4th February, 2011. Retrieved from: https://physics.org.au/wp-content/uploads/cmm/2011/en_AU
dc.identifier.conferenceenddate4 February 2011en_AU
dc.identifier.conferencenameAustralian and New Zealand Institutes of Physics 35th Annual Condensed Matter and Materials Meetingen_AU
dc.identifier.conferenceplaceWagga Wagga, NSWen_AU
dc.identifier.conferencestartdate2 February 2011en_AU
dc.identifier.isbn978-0-646-55969-8en_AU
dc.identifier.urihttps://physics.org.au/wp-content/uploads/cmm/2011/en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11953en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Physicsen_AU
dc.subjectCopperen_AU
dc.subjectAntimonyen_AU
dc.subjectOxygenen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectMagnetic propertiesen_AU
dc.subjectTemperature range 0400-1000 Ken_AU
dc.subjectIronen_AU
dc.subjectTemperature range 0065-0273 Ken_AU
dc.subjectManganeseen_AU
dc.titleCu5SbO6 – synchrotron, neutron diffraction studies and magnetic propertiesen_AU
dc.typeConference Abstracten_AU
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