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Ferromagnetic Mesostructured Alloys: Design of Ordered Mesostructured Alloys with Multicomponent Metals from Lyotropic Liquid Crystals

Authors

  • Yusuke Yamauchi Prof. Dr.,

    1. World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044 (Japan), Fax: (+81) 29-860-4706 http://www.nims.go.jp/mana/members/independent_scientist/y_yamauchi/index.html
    2. Department of Applied Chemistry and Major in Nanoscience and Nanoengineering, Faculty of Science & Engineering, Waseda University, Ohkubo 3-4-1, Shinjuku, Tokyo 169-8555 (Japan)
    3. PRESTO Science and Technology Agency (JST), Honcho 4-1-8, Kawaguchi-shi, Saitama 332-0012 (Japan)
    4. Kagami Memorial Research Institute for Materials Science and Technology, Waseda University, Nishi-waseda 2-8-26, Shinjuku, Tokyo 169-0051 (Japan)
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  • Masaki Komatsu,

    1. Department of Applied Chemistry and Major in Nanoscience and Nanoengineering, Faculty of Science & Engineering, Waseda University, Ohkubo 3-4-1, Shinjuku, Tokyo 169-8555 (Japan)
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  • Minekazu Fuziwara,

    1. Kagami Memorial Research Institute for Materials Science and Technology, Waseda University, Nishi-waseda 2-8-26, Shinjuku, Tokyo 169-0051 (Japan)
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  • Yoshihiro Nemoto Dr.,

    1. World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044 (Japan), Fax: (+81) 29-860-4706 http://www.nims.go.jp/mana/members/independent_scientist/y_yamauchi/index.html
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  • Keisuke Sato Dr.,

    1. World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044 (Japan), Fax: (+81) 29-860-4706 http://www.nims.go.jp/mana/members/independent_scientist/y_yamauchi/index.html
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  • Tokihiko Yokoshima Dr.,

    1. Department of Applied Chemistry and Major in Nanoscience and Nanoengineering, Faculty of Science & Engineering, Waseda University, Ohkubo 3-4-1, Shinjuku, Tokyo 169-8555 (Japan)
    2. Nanoelectronics Research Institute, Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8561 (Japan)
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  • Hiroaki Sukegawa Dr.,

    1. Spintronics Group, Magnetic Materials Center, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047 (Japan)
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  • Kouichiro Inomata Dr.,

    1. Spintronics Group, Magnetic Materials Center, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047 (Japan)
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  • Kazuyuki Kuroda Prof. Dr.

    1. Department of Applied Chemistry and Major in Nanoscience and Nanoengineering, Faculty of Science & Engineering, Waseda University, Ohkubo 3-4-1, Shinjuku, Tokyo 169-8555 (Japan)
    2. Kagami Memorial Research Institute for Materials Science and Technology, Waseda University, Nishi-waseda 2-8-26, Shinjuku, Tokyo 169-0051 (Japan)
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  • We greatly appreciate the reviewers’ helpful comments. This study was supported by the Global COE Program “Practical Chemical Wisdom” from the Japanese Ministry of Education, Culture, Sports, Science, and Technology (MEXT). This work was also supported in part by the A3 Foresight Program “Synthesis and Structural Resolution of Novel Mesoporous Materials” from the Japan Society for the Promotion of Science (JSPS).

Abstract

original image

Magnets made to order: Highly ordered multicomponent mesostructured alloys with controllable compositions have been synthesized [see TEM image and electron diffraction patterns (inset)]. The saturation magnetization of the alloys can be controlled by changing the ratio of metal components. New functions that are not found in a single metal system can be realized by alloying, thus opening up a range of new magnetic applications for these materials.

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