Koryakov, S.V.; Gubanov, V.O.; Biliy, M.M.; Slobodyanyuk, O.V.; Yanchuk, Z.Z.
(Semiconductor Physics Quantum Electronics & Optoelectronics, 2005)
The projective representations of the wavevector group were applied to the analysis of exciton-phonon transitions in enantiomorphous tetragonal crystals ZnP₂ and CdP₂. Selection rules for indirect transitions were derived. ...