The introduction of dislocations in epilayers of III-V quaternary alloys

摘要

The regularities of dislocation introduction into low mismatched LPE heterostructures based on III-V quaternary alloys have been analysed. The drastic distinction in dislocation structure formation was found to be in different type of heterostructures. Experimental results are explained in terms of the effect of alloy nature and composition upon the dislocation nhcleation, propagation and multiplication. It has been assumed that alloy spinodal decomposition affect the processes of dislocation nucleation and propagation.