The mechanism which led to a concentration dependence of the effective distribution coefficient of Ge was considered. It was shown that the dependence of the diffusion coefficient, of impurity atoms in a melt, upon their concentration could lead to a concentration dependence of the effective distribution coefficient.

N.I.Gorbacheva: Izvestiya Akademii Nauk SSSR - Neorganicheskie Materialy, 1991, 27[10], 2036-40 (Inorganic Materials, 1991, 27[10], 1728-32)