Empirical pseudopotential band structure of In0.53Ga0.47As and In0.52Al0.48As

The electronic band structure of the InP-lattice matched alloys In0.53Ga0.4 7As and In0.52Al0.48As is investigated using a non-local empirical pseudopo tential including spin-orbit interaction. Pseudopotential parameters are ob tained by fitting the virtual crystal band structure immediately to availab le experimental data for the alloys. Results are presented for the band str uctures and effective masses in In0.53Ga0.47As and In0.52Al0.48As. Comparis on of the band structures is made against available results from a quasipar ticle calculation and a model pseudopotential calculation within the cohere nt potential approximation. (C) 1998 Elsevier Science Ltd. All rights reser ved.