The electronic band-structures of the superlattices (Ga0.47In0.53As)m/(InP)m(110) withm= 1-25

The electronic band-structures of lattice-matched superlattices (Ga 0.47 In 0.53 As) m /(InP) m (110) with m = 1-25 were calculated by the renormalisation approach in a tight-binding frame. The transitions of the electronic characters from three-dimensional to two-dimensional with increasing superlattice layer number are discussed. It is pointed out that the valence band dispersions of superlattices both along the directions parallel and normal to the superlattice planes show non-parabolic features.