No abstract

The influence of a system of magnetic-field-aligned paramagnetic ions on the conduction and valence band electron states is studied. A modelapplicable to large-gap semiconductors is presented, in which the direct influence of a magnetic field on the band electron states is neglected. This assumption allows to calculate the E ( k ) dependence in the presence of a magnetic field. The calculations are performed in the Kohn-Luttinger model producing a strongly anisotropic and nonparabolic structure. As an illustration of the obtained results measurements of the exciton reflection structure in a magnetic field are presented on the ternary semiconductor CdMnTe.

A magnetic-field-and temperature-dependent line is observed in the Raman spectra of a w-type semimagnetic semiconductor: Cd 0#95 Mn 0#05 Se. It is attributed to spin-flip Raman scattering, with "giant" Stokes shift: 75 cm" 1 in 1 T at 1.6 K. A small zerofield Stokes shift is observed, which is attributed to an exchange-induced magnetic molecule under the electronic orbit of neutral donors.