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Experimental Observation on Orientation Relationship between Binary Cd5.7Yb Quasicrystal and its Crystalline Approximant Cd6Yb |
HOU Ting-Ping1,2;WANG Ren-Hui1,2;GUI Jia-Nian1,2;WANG Jian-Bo1,2;ZHAO Dong-Shan1,2;GUO Jun-Qing3 |
1Department of Physics, Wuhan University, Wuhan 430072
2Centre for Electron Microscopy, Wuhan University, Wuhan 430072
3Furukawa Co. Ltd Tsukuba, Ibaraki 305-0856, Japan |
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Cite this article: |
HOU Ting-Ping, WANG Ren-Hui, GUI Jia-Nian et al 2006 Chin. Phys. Lett. 23 1253-1256 |
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Abstract Similarity in the electron diffraction patterns of the Cd5.7Yb icosahedral quasicrystal and its cubic approximant Cd6Yb crystal is studied in detail by using transmission electron microscopy. The icosahedral twofold axes are parallel to the cubic <1ττ2> (τ=1.618...) or < 001> directions, the icosahedral pseudo-twofold axes are parallel to the cubic <15 21 25> directions, the icosahedral threefold axes are parallel to the cubic <111> and the icosahedral fivefold are parallel to the cubic <0.1τ> directions. Based on those observations a general stereographic projection is given to illustrate the exact orientation relationship.
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Keywords:
61.66.Dk
71.20.Eh
71.23.Ft
68.37.Lp
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Published: 01 May 2006
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