N.V. Joshi2026-03-222026-03-22198110.1143/jjap.20.l733https://doi.org/10.1143/jjap.20.l733https://andeanlibrary.org/handle/123456789/59510Citaciones: 3Lattice dynamical behaviour of CuInS 2 with Fe impurity has been examined at 4.2 K by using Fourier transform spectroscopy. The observed modes are indentified. The mode located at 106 cm -1 is analysed by using a molecular model and was found to be originated by the Fe impurity at In sites. The peak situated at 155 cm -1 could not be explained with a one phonon excitation process and hence it is tentatively attributed to a two phonons absorption of the \varGamma 4 mode or a combination mode of two TO modes.enImpurityPhononExcitationLattice (music)Molecular vibrationFourier transformMode (computer interface)ChemistryAbsorption spectroscopySpectroscopyarticle