Effects of two longitudinal optical-phonon modes on electron distribution in GaxIn1−xAsyP1−y

Abstract
GaInAsP quaternary alloys are known to have two or three longitudinal optical (LO)-phonon modes. The two-LO-phonon model was employed for the electron distribution and drift mobility calculations. Perturbation distribution has sharp drops due to the two-LO phonons and these drops cause a further downward bowing of the mobility along the arsenic composition compared with a one-LO-phonon model which has mostly been used.