OPTICAL-PROPERTIES OF MAGNETIC SAWTOOTH SUPERLATTICES

Self-consistent calculations of the optical properties of magnetic saw tooth superlattices are presented. Sawtooth modulation of the graded g ap superlattice as produced by linear variations of the magnetic Mn2ion in the Cd1-xMnxTe alloy is described. The Brillouin function respo nse of the band gap together with the varying manganese concentration produces unusual potential profiles in an external magnetic field. The calculations show that the low-temperature magnetic field tunability of the exciton emission is greater in sawtooth superlattices than in a n equivalent rectangular super-lattice structure. A means of utilizing this for probing alloy nonrandomness is described.