Gürel, TanjuEryiğit, Resul2021-06-232021-06-2320060232-13001521-4079https://doi.org/10.1002/crat.200410536https://hdl.handle.net/20.500.12491/5954The adiabatic bond charge model of Rustagi and Weber is extended to study lattice dynamical properties of ternary chalcopyrite semiconductors AgGaS2, AgGaSe2, CuInS2, CuInSe2, CuGaS2, CuGaSe2, CuAlS2 and CuAlSe2. The new model calculations agree well with the results of Raman/IR and neutron measurements of Brillouin zone center phonon frequencies for both low and high frequency modes which was difficult for other phenomenological lattice dynamical models.eninfo:eu-repo/semantics/closedAccessPhenomenological Lattice Dynamics ModelsAdiabatic Bond Charge ModelChalcopyrite SemiconductorsLattice DynamicsPhonon FrequenciesArticle10.1002/crat.20041053641183912-s2.0-30844444125Q3WOS:000234640900016Q3