Magnetic ordering of divalent europium in double perovskites Eu2LnTaO6 (Ln=rare earths) : Magnetic interactions of Eu2+ ions determined by magnetic susceptibility, specific heat, and 151Eu Mössbauer spectrum measurements

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概要

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• Structures and magnetic properties of double perovskite-type oxides Eu2LnTaO6 (Ln=Eu, Dy ∼ Lu) were investigated. These compounds adopt a distorted double perovskite structure with space group P2_[1]/n. Magnetic susceptibility, specific heat, and 151Eu Mössbauer spectrum measurements show that the Eu2+ ions at the 12-coordinate sites of the perovskite structure are antiferromagnetically ordered at ∼ 4 K, and that Ln3+ ions at the 6-coordinate site are in the paramagnetic state down to 1.8 K.

著者

• Doi Yoshihiro

  Div. Of Chemistry Graduate School Of Sci. Hokkaido Univ. Sapporo 060-0810 Jpn

• Misawa Yoshitaka

  Division Of Chemistry Graduate School Of Science Hokkaido University

関連論文

• Crystal structures and magnetic properties of ternary sulfides BaLn_2S_4 (Ln=Sm, Gd-Lu)
• Magnetic ordering of divalent europium in double perovskites Eu2LnTaO6 (Ln=rare earths) : Magnetic interactions of Eu2+ ions determined by magnetic susceptibility, specific heat, and 151Eu Mössbauer spectrum measurements

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