The elastic, electronic, and vibrational properties of pure CdF2: A first-principles study

Ab initio calculations, based on density functional theory and norm-conserving pseudopotentials, have been performed to investigate the some structural, elastic, electronic, and lattice-dynamical properties of pure CdF2. The calculated lattice parameter, phonon dispersion, and band structure are in accordance with the available experimental and other theoretical results. The pressure-dependent behaviours of elastic constants and band-structural properties of CdF2 are also reported.