Half-Parabolic Quantum Wells of Diluted Magnetic Semiconductor Cd_1-xMn_xTe

Abstract

We report on magnetooptical studies of MBE-grown half-parabolic CdTe/CdxMn1-xTe quantum well structures.The value of the valence band offset Qv = 0.4 ± 0.05 was determined by comparing energies of optical tran- sitions in the absence of a magnetic field with model calculations.This value was verified by fitting the observed spin splitting of the lowest heavy hole (hh) state.We discuss also the temperature dependence of Q,,. .