RESONANT MAGNETOOPTIC KERR-EFFECT IN CDTE CD1-XMNXTE QUANTUM-WELL STRUCTURES/

We present a study of the magneto-optic Kerr effect (MOKE) in the regi on of the heavy-hole exciton ground state performed on asymmetric quan tum wells Cd1-xZnxTe/CdTe/Cd1-xMnxTe. A multilayer model developed for quantum-well structures accounts quantitatively for the MOKE line sha pes using parameters deduced from magnetoreflectance analysis. The fie ld behavior of energies and intensities of the Ken. resonances underli ne the interest of MOKE measurements, particularly at low held, where a linear dependence between Zeeman splitting and Kerr angle amplitude has been observed. Comparison is given with calculated Faraday rotatio n.