Yevych, R.M.; Vysochanskii, Yu.M.
(Condensed Matter Physics, 2006)
Polarizable ion model was used in describing the lattice dynamics in the Sn₂P₂S₆ and Sn₂P₂Se₆ ferroelectric
crystals and their solid solutions. There has been obtained a good agreement of the calculated phonon
spectra ...