A single-crystal X-ray diffraction study of an Al70.5Pd21Mn8.5 icosahedral quasicrystal期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

A single-crystal X-ray diffraction study of an Al_70.5Pd₂₁Mn_8.5 icosahedral quasicrystal

Authors:	C. Janot M. de Boissieu M. Boudard H. Vincent M. Durand J. M. Dubois C. Dong

Affiliation:	^a Institut Laue-Langevin,BP 156, 38042, Grenoble cédex 9, France ^b LTPCM-ENSEEG, BP 75, 38402, St. Martin d'Hères cédex, France ^c L2MGP-ENSEEG, BP 75, 38402, St. Martin d'Hères cédex, France ^d LSG2M, Ecole de Mines, Parc de Saurupt, 54042, Nancy cédex, France

Abstract:	X-ray diffraction data were measured on a single grain of a stable Al_70.5Pd₂₁Mn_8.5 perfect quasicrystal, in order to complement the neutron diffraction data obtained previously. The F-type lattice structure of the six-dimensional periodic arrangement was confirmed along with the very strong chemical order, due basically to an uneven distribution of the Pd atoms among the lattice sites. This distribution might be the origin of the high stability of the icosahedral structure in this system.

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