Synthesis, structure, and magnetic properties of Sr2NiOsO 6 and Ca2NiOsO6: Two new osmium-containing double perovskites

René Macquart; Seung Joo Kim; William R. Gemmill; Judith K. Stalick; Yongjae Lee; Tom Vogt; Hans Conrad Zur Loye

doi:10.1021/ic051045+

Synthesis, structure, and magnetic properties of Sr₂NiOsO ₆ and Ca₂NiOsO₆: Two new osmium-containing double perovskites

René Macquart, Seung Joo Kim, William R. Gemmill, Judith K. Stalick, Yongjae Lee, Tom Vogt, Hans Conrad Zur Loye

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Abstract

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 Sr ₂NiOsO₆ was found to be tetragonal (I4/m). Magnetic susceptibility measurements indicate that Ca₂NiOsO₆ orders in a canted antiferromagnetic state at about 175 K while Sr ₂NiOsO₆ orders antiferromagnetically at about 50 K.

Original language	English
Pages (from-to)	9676-9683
Number of pages	8
Journal	Inorganic Chemistry
Volume	44
Issue number	26
DOIs	https://doi.org/10.1021/ic051045+
Publication status	Published - 2005 Dec 26

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry
Inorganic Chemistry

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title = "Synthesis, structure, and magnetic properties of Sr2NiOsO 6 and Ca2NiOsO6: Two new osmium-containing double perovskites",

abstract = "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 Sr 2NiOsO6 was found to be tetragonal (I4/m). Magnetic susceptibility measurements indicate that Ca2NiOsO6 orders in a canted antiferromagnetic state at about 175 K while Sr 2NiOsO6 orders antiferromagnetically at about 50 K.",

author = "Ren{\'e} Macquart and Kim, {Seung Joo} and Gemmill, {William R.} and Stalick, {Judith K.} and Yongjae Lee and Tom Vogt and {Zur Loye}, {Hans Conrad}",

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T1 - Synthesis, structure, and magnetic properties of Sr2NiOsO 6 and Ca2NiOsO6

T2 - Two new osmium-containing double perovskites

AU - Macquart, René

AU - Kim, Seung Joo

AU - Gemmill, William R.

AU - Stalick, Judith K.

AU - Lee, Yongjae

AU - Vogt, Tom

AU - Zur Loye, Hans Conrad

PY - 2005/12/26

Y1 - 2005/12/26

N2 - 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 Sr 2NiOsO6 was found to be tetragonal (I4/m). Magnetic susceptibility measurements indicate that Ca2NiOsO6 orders in a canted antiferromagnetic state at about 175 K while Sr 2NiOsO6 orders antiferromagnetically at about 50 K.

AB - 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 Sr 2NiOsO6 was found to be tetragonal (I4/m). Magnetic susceptibility measurements indicate that Ca2NiOsO6 orders in a canted antiferromagnetic state at about 175 K while Sr 2NiOsO6 orders antiferromagnetically at about 50 K.

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Synthesis, structure, and magnetic properties of Sr₂NiOsO ₆ and Ca₂NiOsO₆: Two new osmium-containing double perovskites

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