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Synthesis, Structure, and Magnetic Properties of Sr<sub>2</sub>NiOsO<sub>6</sub> and Ca<sub>2</sub>NiOsO<sub>6</sub>: Two New Osmium-Containing Double Perovskites
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Citations
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References
2005
Year
Magnetic PropertiesEngineeringSolid-state ChemistryHalide PerovskitesChemistryInorganic MaterialMagnetic MaterialsPerovskite ModuleMagnetismQuantum MaterialsPolycrystalline PowdersMaterials ScienceInorganic ChemistryPerovskite MaterialsMagnetic Susceptibility MeasurementsLead-free PerovskitesCrystallographyPerovskite Solar CellNatural SciencesCondensed Matter PhysicsApplied PhysicsSolid State SynthesisFunctional Materials
Two new double perovskite oxides, Ca(2)NiOsO(6) and Sr(2)NiOsO(6), have been prepared as polycrystalline powders by solid state synthesis. The two oxides were structurally characterized by variable-temperature powder neutron diffraction. Ca(2)NiOsO(6) was found to adopt a monoclinic structure (P2(1)/n), while Sr(2)NiOsO(6) was found to be tetragonal (I4/m). Magnetic susceptibility measurements indicate that Ca(2)NiOsO(6) orders in a canted antiferromagnetic state at about 175 K while Sr(2)NiOsO(6) orders antiferromagnetically at about 50 K.
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