抄録
Structure of ZnSe-ZnTe short-period superlattices prepared by atomic layer epitaxy was studied. X-ray diffraction and transmission electron microscopy measurements indicated that the sample formed a fine superlattice structure which had an abrupt interfaces. This paper reports the lattice strain and lattice vibration in the superlattice which were investigated by Raman scattering spectroscopy. It was found that the obtained superlattices were strained under free-standing configuration and that the phonon frequency was affected by the effect of short-periodicity for the structure with layers less than 4 monolayers. Lattice vibration in ZnSe-ZnTe superlattice was proposed, which was different from that in GaAs-AlAs superlattice.
