Miscibility Calculation of InGaN Alloy
InGaN混溶隙的计算

The miscibility of InGaN/GaN system is calculated by using the modified Valence\|Force\|Field model and the regular solution model,as well as introducing the mismatch strain item, and considering the dependence of interaction factor and stiffness coefficient on the indium content.The results demonstrates that the miscibility of InGaN becomes asymmetry and shifts to the higher InN content area.The critic temperature also decreased to about 1000K.At the same time,the effect of the stiffness coefficient on the miscibility is took into consideration.Furthermore,the calculation model is expanded to the In x Ga 1- x N/In y Ga 1-y N system.