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dc.contributor.authorKayser, Paula
dc.contributor.authorInjac, Sean
dc.contributor.authorRanjbar, Ben
dc.contributor.authorKennedy, Brendan J
dc.contributor.authorAvdeev, Maxim
dc.contributor.authorYamaura, Kazunari
dc.date.accessioned2019-02-20
dc.date.available2019-02-20
dc.date.issued2017-01-01
dc.identifier.citationInorg. Chem., 2017, 56 (15), pp 9009–9018. DOI: 10.1021/acs.inorgchem.7b00983en_AU
dc.identifier.urihttp://hdl.handle.net/2123/20023
dc.description.abstractRuthenium containing double perovskites A2ScRuO6 have been synthesized as polycrystalline powders and structurally characterized using a combination of synchrotron X-ray and neutron powder diffraction methods. When A = Ba a hexagonal 6L perovskite structure is obtained if the synthesis is conducted at ambient pressure and a rock-salt ordered cubic structure obtained if the sample is quenched from high pressures. The Sr oxide Sr2ScRuO6 is obtained with a rock-salt ordered corner sharing topology. Heat capacity and bulk magnetic susceptibility measurements show the three oxides are antiferromagnets. Cubic Ba2ScRuO6 undergoes a metal-insulator transition near 270 K and hexagonal Ba2ScRuO6 is a semiconductor with an activation energy of 0.207 eV. The magnetic structures of the two rock-salt ordered double perovskites were established using powder neutron diffraction, and are described by k = (001) and k = (000) for the Ba and Sr oxides respectively, corresponding to type I antiferromagnetic structures, with ferromagnetic layers stacked antiferromagnetically. The ambient pressure hexagonal polymorph of Ba2ScRuO6 has partial Sc-Ru ordering at both the face-sharing B2O9 dimer and corner sharing BO6 sites. The magnetic structure is described by k = (½ 0 0) with the basis vector belonging to the irreducible representation Γ3.en_AU
dc.description.sponsorshipAustralian Synchrotron Australian Research Councilen_AU
dc.publisherACSen_AU
dc.relationARCen_AU
dc.rightsCopyright © 2017 American Chemical Societyen_AU
dc.subjectPerovskiteen_AU
dc.titleMagnetic and structural studies of Sc containing ruthenate double perovskites A2ScRuO6 (A = Ba, Sr).en_AU
dc.typeArticleen_AU
dc.subject.asrcFoR::030206 - Solid State Chemistryen_AU
dc.identifier.doi10.1021/acs.inorgchem.7b00983
dc.type.pubtypePre-printen_AU


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