Structural phase transitions and magnetic order in SrTcO3

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dc.contributor.authorThorogood, GJen_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorCarter, MLen_AU
dc.contributor.authorKennedy, BJen_AU
dc.contributor.authorTing, Jen_AU
dc.contributor.authorWallwork, KSen_AU
dc.date.accessioned2012-03-14T22:58:16Zen_AU
dc.date.available2012-03-14T22:58:16Zen_AU
dc.date.issued2011-07-21en_AU
dc.date.statistics2012-03-15en_AU
dc.description.abstractThe structure of the perovskite SrTcO3 has been investigated using both synchrotron X-ray and neutron powder diffraction. At room temperature SrTcO3 is orthorhombic as a consequence of cooperative tilting of the corner sharing TcO6 octahedra. The tilts are sequentially removed as the sample is heated with the oxide displaying the sequence of structres Pnma [rightward arrow] Imma [rightward arrow] I4/mcm [rightward arrow] Pm3[3 with combining macron]m. Neutron powder diffraction data collected in the temperature range 4-1023 K indicate that SrTcO3 has G-type antiferromagnetic structure, in which each Tc moment is antiparallel to its six nearest neighbours, below [similar]1000 K. The magnetic structure is collinear antiferromagnetic with the technetium moments parallel to c-axis and can be described by the propagation vector k = [0,0,0] and the basis vector (0,0,Az). The same magnetic structure is observed in each of the four crystal structures.© 2011, Royal Society of Chemistryen_AU
dc.identifier.citationThorogood, G. J., Avdeev, M., Carter, M. L., Kennedy, B. J., Ting, J., & Wallwork, K. S. (2011). Structural phase transitions and magnetic order in SrTcO(3). Dalton Transactions, 40(27), 7228-7233. doi:10.1039/c1dt10445den_AU
dc.identifier.govdoc3835en_AU
dc.identifier.issn1477-9226en_AU
dc.identifier.issue27en_AU
dc.identifier.journaltitleDalton Transactionsen_AU
dc.identifier.pagination7228-7233en_AU
dc.identifier.urihttp://dx.doi.org/10.1039/c1dt10445den_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/4093en_AU
dc.identifier.volume40en_AU
dc.language.isoenen_AU
dc.publisherRoyal Society of Chemistryen_AU
dc.subjectCrystal structureen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectFerromagnetismen_AU
dc.subjectSynchrotronsen_AU
dc.subjectTechnetiumen_AU
dc.subjectWave propagationen_AU
dc.titleStructural phase transitions and magnetic order in SrTcO3en_AU
dc.typeJournal Articleen_AU
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