Synchrotron Radiation Diffraction Study of YbInCu4
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概要
- 論文の詳細を見る
The structural change of an YbInCu4 single crystal has been investigated associated with the first-order valence-transition at $T_{\text{V}} = 42$ K using synchrotron radiation diffraction. The Yb--Cu and In--Cu interatomic distances abruptly increase below $T_{\text{V}}$, following the lattice expansion with no change in the C15b-type crystal structure. We find that the distance between Cu ions forming the Cu4 cluster in the crystal is almost unchanged across the valence transition. No abrupt change in the thermal rotational motion of the Cu4 cluster is observed at $T_{\text{V}}$.
- 2011-05-25
著者
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Taniguchi Masaki
Department Of Material Physics Faculty Of Engineering Science Osaka University
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Kojima Kenichi
Graduate School Of Integrated Science Yokohama City University
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Moriyoshi Chikako
Department Of Materials Science Faculty Of Science Hiroshima University
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Namatame Hirofumi
Department Of Chemistry Faculty Of Engineering Mie University
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Hiraoka Koichi
Graduate School Of Science And Engineering Ehime University
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Sato Hitoshi
Hiroshima Synchrotron Radiation Center Hiroshima University
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KUROIWA Yoshihiro
Department of Physical Science, Hiroshima University
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Sugimoto Kunihisa
JASRI/SPring-8, Sayo, Hyogo 679-5198, Japan
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Utsumi Yuki
Department of Physical Sciences, Graduate School of Science, Hiroshima University, Higashihiroshima, Hiroshima 739-8526, Japan
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Hiraoka Koichi
Graduate School of Science and Engineering, Ehime University, Matsuyama 790-8577, Japan
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Kuroiwa Yoshihiro
Department of Physical Sciences, Graduate School of Science, Hiroshima University, Higashihiroshima, Hiroshima 739-8526, Japan
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Kojima Kenichi
Graduate School of Integrated Arts and Sciences, Hiroshima University, Higashihiroshima, Hiroshima 739-8521, Japan
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Moriyoshi Chikako
Department of Physical Sciences, Graduate School of Science, Hiroshima University, Higashihiroshima, Hiroshima 739-8526, Japan
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