5 SIMPLE STATEMENTS ABOUT FE²�?ZNS CRYSTAL EXPLAINED

KLuS two solitary crystal samples undoped and doped by using a reduced (5 %) or higher (38 %) concentration of trivalent thulium or ytterbium ions had been synthesized in the shape of thin hexagonal plates. The low phonon Strength (�?20 cm ⁻�?) was confirmed using Raman spectroscopy. Samples have been analyzed also by utilizing optical absorp