Lithium Ruthenates : Controlling Dimensionality and Topology of Magnetic-Ion Arrangements(Cross-disciplinary physics and related areas of science and technology)
スポンサーリンク
概要
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In order to control the dimensionality and the topology of the arrangement of magnetic Ru ions, NaCl-type lithium ruthenates have been investigated. Three types of lithium ruthenates, Li_3RuO_4, Li_2RuO_3, and cubic-Li_xRuO_<1+x>, were synthesized using a hydrothermal method. All of them have NaCl-type structure, but the arrangements of the cations, Li^+ and Ru^<5+> (or Ru^<4+>), differ from each other. Li_3RuO_4 with one-dimensional zigzag chains of Ru ions undergoes an antiferromagnetic transition at 66K and exhibits an irreversible magnetism below 32K, where the zero-field-cooled susceptibility differs from the field-cooled susceptibility. Li_2RuO_3 with a two-dimensional honeycomb network of Ru ions demonstrates a paramagnetism almost independent of temperature. A novel ruthenate cubic-Li_xRuO_<1+x>, in which Ru and Li randomly occupy the cation sites of NaCl lattice, undergoes a spin-glass transition at 10K.
- 社団法人日本物理学会の論文
- 2006-12-15
著者
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Sato Hirohiko
Department Of Physics Chuo University
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Sato Hirohiko
Department Of Biotechnology Tokyo University Of Agriculture And Technology
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SOMA Makoto
Department of Physics, Chuo University
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Soma Makoto
Department Of Physics Chuo University
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Soma Makoto
Department Of Orthopaedic Surgery Kudanzaka Hospital
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