Nn. Syrbu et Ve. Tezlevan, ENERGETIC BAND-STRUCTURE AND OPTICAL-SPECTRA OF CDGA2SE4, CDGA2S4 ANDCDAL2S4 CRYSTALS, Physica. B, Condensed matter, 210(1), 1995, pp. 43-48
Reflectivity spectra of CdGa2Se4, CdGa2S4 and CdA1(2)S(4) crystals hav
e been investigated in the range 1-6 eV for the polarization E paralle
l to c and E perpendicular to c at 300 and 77 K. The valence band spli
tting caused by spin-orbital interaction and by crystal field are calc
ulated for the point k = 0. The band model has been built in actual po
ints of the Brillouin zone Gamma, N, T, P.