FACTS ABOUT FE²�?ZNS CRYSTAL REVEALED

KLuS two one crystal samples undoped and doped which has a minimal (five %) or high (38 %) concentration of trivalent thulium or ytterbium ions were synthesized in the form of slim hexagonal plates. The lower phonon Strength (�?20 cm ⁻�?) was confirmed making use of Raman spectroscopy. Samples have been examined also by making use of optical