A study of the Raman scattering in Zn1-xMgxSe (0 less than or equal to
x less than or equal to 0.4) epilayers grown by molecular beam epitax
y on (100) GaAs and (111)(Zn) ZnTe substrates has been performed. Two
kinds of longitudinal optical phonon modes (LO(Zn-Se) and LO(Mg-Se)) w
ere observed under excitation of the Ar+ and Kr+ laser lines at room t
emperature, whose frequencies and intensities depend characteristicall
y on the Mg content.