The theory of disordered alloys. I. Continued fractions and off-diagonal disorder

摘要: A continued fraction technique is used to derive an approximation the density of states a disordered alloy with tree Bethe lattice. The in case only diagonal disorder provides new simple derivation coherent potential for certain states. For both and off-diagonal given terms solution cubic equation. self energy this also obtained provide starting point theory alloys general lattice which equivalent special Blackman et al. Extensive calculations are presented.