Structure refinement of decagonal Al-Ni-Co, superstructure type I

摘要

The structure of decagonal Al-Ni-Co, superstructure type I (the so-called Edagawa phase), was refined in physical space. A statistical approach was used to calculate the structure factors based on a rhombic Penrose tiling, with tile edge length 12.1 à , as reference frame. A total number of 691 parameters was refined against 6843 structure amplitudes, merged in Laue group 10/m.