BAND-STRUCTURE OF MBE-GROWN ZB-MNTE CDTE-OPTICAL AND PHOTOEMISSION-STUDIES/

This paper presents the results of optical and photoemission experimen ts performed on zinc blende-MnTe (ZB-MnTe) layers grown on CdTe (100) surface. The spectral dependence of the reflectivity coefficient was m easured at room temperature for the photon energy range 1.5 less than or equal to hv less than or equal to eV. The results were compared wit h the known optical parameters of bulk Cd1-xMnxTe as well as with the adsorption coefficient spectra of ZB-MnTe. Resonant photoemission spec troscopy was used to reveal the Mn3d-derived contribution to the valen ce band density of states distribution. In particular, the localized e -type states manifest themselves clearly as a pronounced maximum centr ed at about 3.5 eV below the valence band edge. The results correspond well to those obtained for Cd1-xMnxTe.