Effect of Lattice Mismatch on the Solidus Compositions of GaxIn1-xP Liquid Phase Epitaxial Crystals

Abstract
Liquid phase epitaxy of Ga x In1-x P on (100)-oriented GaAs and GaAs0.8P0.2 substrates has been studied. Results indicate that the solidus compositions of Ga x In1-x P on both substrates tend to be “locked” near the lattice matching composition. This “composition pulling” effect is shown to be consistent with a model that takes account of the contribution of lattice mismatch strain energy.