The six-dimensional (6D) low density elimination method (LDEM) has been applied to solve the p-type icosahedral Zn 75 Mg 16 Ho 9 quasicrystal. The reconstructed electron density distribution by the LDEM exhibits three large occupation domains (ODs) centred at (0,0,0,0,0,0), (1/2,1/2,1/2,1/2,1/2,1/2,) and (1/2,0,0,0,0,0) in the 6D primitive unit cell, and the OD at (1/2,1/2,1/2,1/2,1/2,1/2,) contains Ho atoms, which mainly distribute around the threefold directions. A geometrical analysis confirms that a rhombic triacontahedron cluster which includes a Bergman-type cluster is a basic building unit of the structure.
ASJC Scopus subject areas
- Condensed Matter Physics