Far Infrared Characterization of Semimagnetic Semiconductor CdTe-Cd1xMnxTe Multi Quantum Wells

By using a macroscopic model based on effective medium theory, we have analyzed the s-and p-polarized far infrared magnetoplasmon spectra of doped CdTe-Cd_1-xMn_xTe multi quantum wells in the presence of a static magnetic field parallel to surface of layer. The results show the transverse optical modes (for whole composition range, x= 0 to 1) are sensitive and change linearly with respect to composition parameter. Also, the analysis of tensor of dielectric function and Voigt dielectric function are used to determine carrier´s effective masses (hole and electron) as a function of composition. The results are compared with data from Raman and far infrared measurements.