Presented are new results on investigations of optical properties of cadmium arsenide. Most correct reflection spectra have been obtained on perfect crystals and up-to-date spectral equipment. The reflectivity of a polymorphic -Cd3As2 (space group D15) and -Cd3As2 (space group D11) is measured at 4h 4h the room and that of liquid nitrogen temperatures within the range 1-5 eV by a polarized light (E c, E c). For the first time the anisotropy of spectra obtained was detected in case of -modification. In this work, we have compared results for both modifications with experimental and theoretical data of other authors.
Физика и техника полупроводников, 2005, том 39, вып.