The empirical pseudopotential method including the spin-orbit interaction i
s used to calculate the band structure of the substitution solid solution I
nSb1-xBix. This makes it possible to study the dependence of the band gap o
n the temperature and composition of the alloy in the virtual-crystal appro
ximation. The calculations are in good agreement with the available experim
ental data. (C) 1999 American Institute of Physics. [S1063-7826(99)00703-6]
.