Acceptor Levels of Substitutional Zn, Cd and Hg Impurity Atoms in Ge_{1-x}Si_x Crystals

Hall measurement has been carried out for a set of Zn, Cd and Hg-doped Ge_{1-x}Si_x crystals (0 \leq X \leq 0,3). It is shown that the substitutional Zn_s an...