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N. Ogawa
Institute for Materials Research, Tohoku Univ.
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K. Sumiyama
Institute for Materials Research, Tohoku Univ.
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T.J. Konno
Institute for Materials Research, Tohoku Univ.
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K. Wakoh
Institute for Materials Research, Tohoku Univ.
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K. Suzuki
Institute for Materials Research, Tohoku Univ.