Low-frequency elastic vibrations of the CsDy(MoO4)2 crystal

Abstract

Using a one-dimensional model of the crystal lattice, the CsDy(MoO4)2 single crystal low-frequency phonon vibrational spectrum, is calculated using previously measured far-infrared (10–10 cm−1) light transmission spectra, in polarized light, at low temperatures (6–40 K). The calculation is done for CsDy(MoO4)2 structures both above and below the temperature of the structural phase transition (TC = 38 K). It is determined that the result of this transition is a change in the phonon vibration and light transmission spectra.