NOT KNOWN DETAILS ABOUT FE²�?ZNS CRYSTAL

KLuS 2 solitary crystal samples undoped and doped having a low (five %) or higher (38 %) concentration of trivalent thulium or ytterbium ions were synthesized in the shape of slim hexagonal plates. The very low phonon Power (�?20 cm ⁻�?) was confirmed applying Raman spectroscopy. Samples were being examined also by utilizing optical absorptio