ELECTRO-OPTIC COEFFICIENTS IN 3-V COMPOUNDS

The electro-optic coefficients χE0(2) for six III-V compounds InSb, InAs, InP, GaSb, GaAs, and GaP with the zinc-blende structure are calculated using an electrostatic point-charge model. An interpretation of the Faust-Henry result for GaP is presented and an approximate relation is shown to exist between the Faust-Henry coefficient C and the electronic deformation part of the transverse effective charge eT+ in these compounds. The case of CuCl is also briefly discussed. © 1969 The American Physical Society.