Neutron diffraction study of spin and charge ordering in SrFeO3-delta

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dc.contributor.authorReehuis, Men_AU
dc.contributor.authorUlrich, Cen_AU
dc.contributor.authorMaljuk, Aen_AU
dc.contributor.authorNiedermayer, Cen_AU
dc.contributor.authorOuladdiaf, Ben_AU
dc.contributor.authorHoser, Aen_AU
dc.contributor.authorHofmann, Ten_AU
dc.contributor.authorKeimer, Ben_AU
dc.date.accessioned2014-03-19T04:43:47Zen_AU
dc.date.available2014-03-19T04:43:47Zen_AU
dc.date.issued2012-05-22en_AU
dc.date.statistics2014-03-19en_AU
dc.description.abstractWe report a comprehensive neutron diffraction study of the crystal structure and magnetic order in a series of single-crystal and powder samples of SrFeO3-delta in the vacancy range 0 <= delta <= 0.23. The data provide detailed insights into the interplay between the oxygen vacancy order and the magnetic structure of this system. In particular, a crystallographic analysis of data on Sr8Fe8O23 revealed a structural transition between the high-temperature tetragonal and a low-temperature monoclinic phase with a critical temperature T = 75 K, which originates from charge ordering on the Fe sublattice and is associated with a metal-insulator transition. Our experiments also revealed a total of seven different magnetic structures of SrFeO3-delta in this range of delta, only two of which namely an incommensurate helix state in SrFeO3 and a commensurate, collinear antiferromagnetic state in Sr4Fe4O11) had been identified previously. We present a detailed refinement of some of the magnetic ordering patterns and discuss the relationship between the magnetotransport properties of SrFeO3-delta samples and their phase composition and magnetic microstructure. © 2012, American Physical Society.en_AU
dc.identifier.articlenumber184109en_AU
dc.identifier.citationReehuis, M., Ulrich, C., Maljuk, A., Niedermayer, C., Ouladdiaf, B., Hoser, A., Hofmann, T., & Keimer, B. (2012). Neutron diffraction study of spin and charge ordering in SrFeO3-delta. Physical Review B, 85(18), 184109. doi:10.1103/PhysRevB.85.184109en_AU
dc.identifier.govdoc4563en_AU
dc.identifier.issn1098-0121en_AU
dc.identifier.issue18en_AU
dc.identifier.journaltitlePhysical Review Ben_AU
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevB.85.184109en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/5256en_AU
dc.identifier.volume85en_AU
dc.language.isoenen_AU
dc.publisherAmerican Physical Societyen_AU
dc.subjectMagnetismen_AU
dc.subjectAntiferromagnetismen_AU
dc.subjectGrowthen_AU
dc.subjectAmbient temperatureen_AU
dc.subjectSystems analysisen_AU
dc.subjectCrystal latticesen_AU
dc.titleNeutron diffraction study of spin and charge ordering in SrFeO3-deltaen_AU
dc.typeJournal Articleen_AU
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