INTERBAND MAGNETOTRANSMISSION AND COHERENT RAMAN-SPECTROSCOPY OF SPINTRANSITIONS IN DILUTED MAGNETIC PB1-XMNXSE

Using coherent anti-Stokes Raman scattering (CARS) of the radiation of two CO2 lasers, spin resonances of electrons and holes in Pb1-xMnxSe were observed. The data yield high-precision values of the effective g factors of valance and conduction bands for Mn contents between 0% an d 2% and temperatures between 1.7 and 20 K. The band structure of the diluted magnetic semiconductor with its exchange interaction between f ree carriers and localized magnetic moments of the Mn ions is describe d in the framework of a molecular-field approximation. The CARS result s together with magneto-optical interband absorption data yield a comp lete set of band and exchange parameters.