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Magnetic Materials: Photoinduced Magnetization with a High Curie Temperature and a Large Coercive Field in a Co-W Bimetallic Assembly (Adv. Funct. Mater. 10/2012)

Authors

  • Noriaki Ozaki,

    1. Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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  • Hiroko Tokoro,

    1. Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
    2. NEXT, JSPS, 8 Ichibancho, Chiyoda-ku, Tokyo 102-8472, Japan
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  • Yoshiho Hamada,

    1. Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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  • Asuka Namai,

    1. Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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  • Tomoyuki Matsuda,

    1. Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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  • Souhei Kaneko,

    1. Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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  • Shin-ichi Ohkoshi

    Corresponding author
    1. Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
    2. CREST, JST, K's Gobancho, 7 Gobancho, Chiyoda-ku, Tokyo 102-0076, Japan
    • Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
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Abstract

original image

As reported by Shin-ichi Ohkoshi and co-workers on page 2089 a three-dimensional Co-W bimetallic assembly possessing two different aromatic molecules, [{CoII(4-methylpyridine)(pyrimidine)}2{CoII(H2O)2}{WV(CN)8}2]·4H2O, exhibits a photoinduced magnetization due to an optical charge-transfer-induced spin transition with a high Curie temperature (TC) of 48 K and a gigantic coercive field (HC) of 27 000 Oe. The TC and HC values are the highest reported for photoinduced magnetization systems.

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