Abstract
The structure of the χ-AlPdRe phase was determined by single crystal X-ray diffraction: space group P31c (No.159), a = 1.23744(4) nm, c = 2.7489(1) nm, V = 3.6453(2) nm3, atoms/cell = 230, F(000) = 5138, µ = 20.199 cm−1, Dcalc = 5.29 Mg m−3, R(F) = 0.068 for 2894 observed reflections measured by Mo Kα radiation (λ = 0.071073 nm). The structure of χ-AlPdRe is similar to that of Ir9Al28 and typical i3-clusters and pseudo-Mackay type icosahedra are well reproduced by the ordered distribution of Pd and Re.
Acknowledgements
The authors wish to express their gratitude to Mr Y. Murakami, Institute for Materials Research, for his help on the EPMA analysis. A part of this work was supported by a Grant-in-Aid for challenging Exploratory Research (22656152) from the Japan Society for the Promotion of Science (JSPS).