Abstract
AbstractInfrared reflectivity and transmission spectra of Cu2GeS3 are measured at room temperature in the wavenumber range from 180 to 4000 cm−1. From an analysis of the spectra the parameters of the fundamental infrared active lattice modes and of the two‐phonon combination modes are determined. From a comparison of the experimental data with group theoretical predictions for the structure models proposed for Cu2GeS3 in the literature it is concluded that Cu2GeS3 crystallizes in a monoclinic lattice.
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