Feasibility of covalent quasicrystals

An algorithm for constructing a quasicrystalline structure based on atoms with tetrahederal coordination of covalent atomic bonds (the typical coordination for group IV atoms) is proposed. The algorithm is used to construct a computer model of a cluster with icosahedral symmetry. The model is used to estimate the energy parameters of the structure and the distributions of bonds over interatomic bond lengths and interbond angles. The distributions obtained correlate well with the analogous results for silicon glasses and do not impose any fundamental constraints on the implementation of such structures in practice. Zh. éksp. Teor. Fiz. 114, 2187–2193 (December 1998)