Abstract
The experimental dependences of the GaPx As1−x solid solution phosphorus proportion on growth conditions by molecular beam epitaxy from As2 and P2 molecules on GaAs(001) substrate were described using the phenomenological model. The model was built on the well-established ideas about the III−V compounds MBE growth. The ratio of the arsenic and phosphorus atoms incorporation coefficients was considered as a function of the substrate temperature and molecular flux densitys. Empirical expressions were found that describe the behavior of the arsenic and phosphorus incorporation coefficients ratio depending on the indicated growth parameters. This makes it possible to estimate the V group molecule flux values to obtain the required x in a GaPx As1−x solid solution at the given substrate temperature and the gallium atoms flow density.
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