Energy bandgap and lattice constant contours of iii–v quaternary alloys

Energy band gap and lattice constant contours are presented for the nine quaternary alloys formed from Al, Ga, In and P, As, Sb. The quaternary bandgaps were obtained using an interpolation formula proposed by Moonet al. The quater nary lattice constants were obtained by use of a linear interpolation technique using the binary lattice constants as boundary values. This work was supported by a research grant from the Office of Naval Research, Washington, D.C.