Chemical, magnetic and orbital order in the substituted double perovskite Sr(1-x)Ca(x)Mn0.5Ru0.5O3

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dc.contributor.authorRicciardo, RAen_AU
dc.contributor.authorWoodward, PMen_AU
dc.contributor.authorCuthbert, HLen_AU
dc.contributor.authorZhou, QDen_AU
dc.contributor.authorKennedy, BJen_AU
dc.contributor.authorZhang, Zen_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorJang, LYen_AU
dc.date.accessioned2021-08-02T22:08:10Zen_AU
dc.date.available2021-08-02T22:08:10Zen_AU
dc.date.issued2010-03en_AU
dc.date.statistics2021-08-02en_AU
dc.description.abstractThe structural and magnetic properties of Sr(1x)Ca(x)Mn0.5Ru0.5O3 have been investigated. SrMn0.5Ru0.5O3 exhibits antiferromagnetic ordering, TN ≈200 K. Neutron powder diffraction of this perovskite indicates the presence of orbital ordering of the occupied Mn+3 dz2 orbitals, stabilizing the spin ordering corresponding to the AFM C-type structure. The substitution of smaller Ca+2 for Sr+2 on the A-site induces a change in the octahedral tilt system, (a0a0c−) to (a−b+a−) forcing a loss of this type of orbital ordering for x ≥ 0.2. This is accompanied by a crossover to a ferromagnetic ground state with 200K ≤ TC ≤ 300K even in the absence of long range chemical order. Magnetic data and neutron powder diffraction of CaMn0.5Ru0.5O3 and Sr0.5Ca0.5Mn0.5Ru0.5O3 reveal reduced magnetic moments and imply a complex magnetic behavior as well as a complete loss of orbital ordering for CaMn0.5Ru0.5O3. X-ray absorption studies show increased electron transfer from Mn to Ru. © 2021 American Physical Societyen_AU
dc.identifier.articlenumberBAPS.2010.MAR.X27.5en_AU
dc.identifier.citationRicciardo, R., Woodward, P., Cuthbert, H., Zhou, Q., Kennedy, B., Zhang, Z., Avdeev, M., Jang, L.-Y. (2901). Chemical, magnetic and orbital order in the substituted double perovskite Sr(1-x)Ca(x)Mn0.5Ru0.5O3. Paper presented at APS March Meeting 2010, March 15–19, 2010, Portland, Oregon. In Bulletin of the American Physical Society 55, 2. Retrieved from: http://meetings.aps.org/Meeting/MAR10/Event/123296en_AU
dc.identifier.conferenceenddate19 March 2010en_AU
dc.identifier.conferencenameAPS March Meeting 2010en_AU
dc.identifier.conferenceplacePortland, Oregonen_AU
dc.identifier.conferencestartdate15 March 2010en_AU
dc.identifier.issn0003-0503en_AU
dc.identifier.issue2en_AU
dc.identifier.journaltitleBulletin of the American Physical Societyen_AU
dc.identifier.urihttp://meetings.aps.org/link/BAPS.2010.MAR.X27.5en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11234en_AU
dc.identifier.volume55en_AU
dc.language.isoenen_AU
dc.publisherAmerican Physical Societyen_AU
dc.subjectMagnetic propertiesen_AU
dc.subjectAntiferromagnetismen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectPerovskiteen_AU
dc.subjectMagnetic momentsen_AU
dc.subjectX-ray diffractionen_AU
dc.titleChemical, magnetic and orbital order in the substituted double perovskite Sr(1-x)Ca(x)Mn0.5Ru0.5O3en_AU
dc.typeConference Abstracten_AU
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