Crystal and magnetic structure of Li2MnSiO4 and Li2CoSiO4 characterized by neutron diffraction measurement

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dc.contributor.authorMohamed, Zen_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorLing, CDen_AU
dc.date.accessioned2021-10-25T23:56:56Zen_AU
dc.date.available2021-10-25T23:56:56Zen_AU
dc.date.issued2014-02-06en_AU
dc.date.statistics2021-09-13en_AU
dc.description.abstractLithium orthosilicates compounds Li2MnSiO4 and Li2CoSiO4 were synthesized by solid state reaction and characterized using X-ray powder diffraction, magnetic susceptibility measurement, heat capacity and neutron powder diffraction. The magnetic susceptibility measurement shows that Li2MnSiO4 and Li2CoSiO4 obey Curie Weiss behaviour at high temperature and undergo antiferromagnetic ordering below TN = ~12 K and ~13 K respectively. The magnetic structures of both compound have been solved for the first time using low temperature neutron diffraction data. The results reveal that the magnetic structure of Li2CoSiO4 can be described as antiferromagnetic quasi-layers stacked along the a-axis with the magnetic moment ~2.92 μB aligned parallel to the a-axis. The magnetic structure of Li2MnSiO4 showed quite different behaviour compared to Li2CoSiO4. The origin of this complex magnetic structures will be discussed in terms of super-superexchange interactions among the transition metal ions, mediated by bridging SiO4 tetrahedra.en_AU
dc.identifier.citationMohamed, Z., Avdeev, M., & Ling, C. D. (2014). Crystal and magnetic structure of Li2MnSiO4 and Li2CoSiO4 characterized by neutron diffraction measurement. Paper presented at the 38th Annual Condensed Matter and Materials Meeting 2014, Waiheke Island Resort, Waiheke, Auckland, New Zealand, 4th February - 7th February, 2014. Retrieved from: https://physics.org.au/wp-content/uploads/cmm/2014/Wagga2014proceedings.pdfen_AU
dc.identifier.conferenceenddate7 February 2014en_AU
dc.identifier.conferencename38th Annual Condensed Matter and Materials Meeting 2014en_AU
dc.identifier.conferenceplaceAuckland, New Zealanden_AU
dc.identifier.conferencestartdate4 February 2014en_AU
dc.identifier.isbn978-0-646-93339-9en_AU
dc.identifier.otherTO9en_AU
dc.identifier.urihttps://physics.org.au/wp-content/uploads/cmm/2014/Wagga2014proceedings.pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/12077en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Physicsen_AU
dc.subjectAlkali metal compoundsen_AU
dc.subjectCoherent scatteringen_AU
dc.subjectDiffractionen_AU
dc.subjectLithium compoundsen_AU
dc.subjectMagnetic propertiesen_AU
dc.subjectMagnetismen_AU
dc.subjectOxygen compoundsen_AU
dc.subjectPhysical propertiesen_AU
dc.subjectPhysicsen_AU
dc.subjectScatteringen_AU
dc.subjectSilicatesen_AU
dc.subjectSilicon compoundsen_AU
dc.titleCrystal and magnetic structure of Li2MnSiO4 and Li2CoSiO4 characterized by neutron diffraction measurementen_AU
dc.typeConference Abstracten_AU
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