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V-V Dimerization and Magnetic State of Cobalt Ions in Ilmenite-Type CoVO3.
Kamiyama, Sachiko; Yamada, Ikuya; Fukuda, Masayuki; Okazaki, Yuichi; Nakamura, Takashi; Nishikubo, Takumi; Azuma, Masaki; Kimura, Hiroyuki; Yamamoto, Hajime.
Afiliación
  • Kamiyama S; Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577 Japan.
  • Yamada I; Department of Materials Science, Graduate School of Engineering, Osaka Prefecture University, Gakuen-cho 1-1, Naka-ku, Sakai, Osaka 599-8531, Japan.
  • Fukuda M; Laboratory for Materials and Structures, Tokyo Institute of Technology, Nagatsuta 4259, Midori-ku, Yokohama 226-8503, Japan.
  • Okazaki Y; Department of Materials Science, Graduate School of Engineering, Osaka Prefecture University, Gakuen-cho 1-1, Naka-ku, Sakai, Osaka 599-8531, Japan.
  • Nakamura T; Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577 Japan.
  • Nishikubo T; Laboratory for Materials and Structures, Tokyo Institute of Technology, Nagatsuta 4259, Midori-ku, Yokohama 226-8503, Japan.
  • Azuma M; Kanagawa Institute of Industrial Science and Technology, Shimoimaizumi 705-1, Ebina, Kanagawa 243-0435, Japan.
  • Kimura H; Laboratory for Materials and Structures, Tokyo Institute of Technology, Nagatsuta 4259, Midori-ku, Yokohama 226-8503, Japan.
  • Yamamoto H; Kanagawa Institute of Industrial Science and Technology, Shimoimaizumi 705-1, Ebina, Kanagawa 243-0435, Japan.
Inorg Chem ; 61(20): 7841-7846, 2022 May 23.
Article en En | MEDLINE | ID: mdl-35532118
The nature of chemical bonds determines the electronic and magnetic properties of compounds. A metal-metal bonding (V-V dimer) and its effect on the magnetism of ilmenite-type CoVO3 were studied. Polycrystalline CoVO3 samples were synthesized using a high-pressure synthesis method. Crystal structure refinement revealed that V-V dimers exist at temperatures below 550 K in the vanadium layers. Co2+ in CoVO3 exhibits an S = 3/2 state, whereas a Jeff = 1/2 state was reported in ilmenite-type CoTiO3. The existence of V-V dimers reduces the structural symmetry (from R3 to P1), which can change the magnetic ground state.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Inorg Chem Año: 2022 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Inorg Chem Año: 2022 Tipo del documento: Article Pais de publicación: Estados Unidos