抄録
Optical and magneto-optical properties of single crystals of Cr2Te3 and Cr3Te4 grown by chemical vapor transport technique were studied. Spectra of normal incidence reflectivity were measured at room temperature on both samples. On Cr3Te4, magnetooptical spectra were also measured. Spectra of the diagonal and off-diagonal elements of the conductivity tensor were obtained from the measured spectra. These were compared with those estimated from density of state curves calculated by Dijkstra and showed appreciable agreement. From these results it is concluded that transitions from Cr3d to C. B. for majority spins and Te5p to Cr3d for minority spins are responsible for the observed optical absorption and magneto-optical effects.
