Quasiperiodic Superstructure with an Ordered Arrangement of Atom Columnar Clusters in an Al-Ni-Ru Decagonal Quasicrystal with 0.4nm Periodicity : Condensed Matter: Structure, etc.
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概要
- 論文の詳細を見る
We have found a highly perfect quasiperiodic superstructure of a decagonal quasicrystal (D-phase), which is formed by the ordered arrangement of atom columnar clusters. The D-phase with 0.4nm periodicity, which has been found in a conventionally solidified Al_<70>Ni_<20>Ru_<10> alloy, shows many superlattice reflections in its tenfold electron diffraction pattern. High-resolution electron microscopy of the D-phase reveals that the ordered arrangement of two types of atom columnar clusters with different directions of pentagonal symmetry allows the fundamental lattice of a pentagonal tiling to be subdivided into two sublattices of rhombic tilings with edge length enlarged τ times (τ is the golden ratio).
- 社団法人日本物理学会の論文
- 2000-08-15
著者
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HIRAGA Kenji
Institute for Materials Research, Tohoku University
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平賀 賢二
東北大学
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OHSUNA Tetsu
Institute for Materials Research, Tohoku University
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SUN Wei
Institute for Materials Research, Tohoku University
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平賀 賢二
東北大学金属材料研究所
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Sun Wei
Department Of Electrical Engineering University Of South Carolina
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Ohsuna T
Tohoku Univ. Sendai Jpn
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Ohsuna T
Iwaki Meisei Univ. Fukushima
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Ohsuna Tetsu
Institute For Material Research Tohoku University
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Sun W
Tohoku Univ. Sendai Jpn
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Hiraga Kenji
Institute For Materials Research
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Sun Wei
Institute For Materials Research Tohoku University
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