ENERGY-GAP VERSUS ALLOY COMPOSITION AND TEMPERATURE IN GAXIN1-XSB

A simple adjusted pseudopotential form factor combined with the virtua l crystal approximation and incorporating the compositional disorder a s an effective potential for the alloy Ga(x)ln(1-x)Sb has been used in order to calculate the dependence of the direct and indirect band gap s on molar fraction and temperature. The obtained results compare reas onably,well with available experimental data. The bowing parameter dec reases with increasing temperature. The values of the temperature coef ficients are nonlinearly dependent on molar composition and dependent on the temperature range.