Synthesis, Structure, and Magnetic Properties of Sr2NiOsO6 and Ca2NiOsO6: Two New Osmium-Containing Double Perovskites
Two new double perovskite oxides, Ca2NiOsO6 and Sr2NiOsO6, have been prepared as polycrystalline powders by solid state synthesis. The two oxides were structurally characterized by variable-temperature powder neutron diffraction. Ca2NiOsO6 was found to adopt a monoclinic structure (P21/n), while Sr2NiOsO6 was found to be tetragonal (I4/m). Magnetic susceptibility measurements indicate that Ca2NiOsO6 orders in a canted antiferromagnetic state at about 175 K while Sr2NiOsO6 orders antiferromagnetically at about 50 K.
Published in Inorg. Chem, Volume 44, Issue 26, 2005, pages 9676-9683.
Synthesis, Structure, and Magnetic Properties of Sr2NiOsO6 and Ca2NiOsO6: Two New Osmium-Containing Double PerovskitesRené Macquart,†, Seung-Joo Kim,†, William R. Gemmill,†, Judith K. Stalick,‡, Yongjae Lee,§, Tom Vogt,† and, and Hans-Conrad zur Loye*,† Inorganic Chemistry 2005 44 (26), 9676-9683