Abstract
Single crystals, with a typical size of several millimetres, of a decagonal phase with 1.6 nm periodicity in the Al–Ni–Ru system were grown successfully by the solution-growth method. The conditions for crystal growth were that the initial composition was Al80Ni16Ru4, the taking-out temperature 900–930°C and the cooling rate 2°C h−1. The lattice parameters were a = 0.2764(2) and c = 1.6523(5) nm, and the composition was in a small range around Al75.2Ni14.6Ru10.2. Single crystals of the orthorhombic Al13(Ni, Ru)4 phase and the monoclinic Al13(Ni, Ru)4 phase located at the high-Ni end also formed under slightly different conditions.
Acknowledgements
The authors thank Mr. N. Miyazaki for his help in the EMPA analysis. One of the authors (H.T.) is grateful to Prof. S. Lidin for hospitality and help in the use of Xcalibur CCD diffractometer during his visit at Stockholm University. This research was supported by the KAKENHI (No. 21560003) and FY2009 Researcher Exchange Program between JSPS and RSAS.