THE 5-SECOND TRICK FOR FE²�?ZNS CRYSTAL

KLuS two one crystal samples undoped and doped by using a lower (5 %) or significant (38 %) concentration of trivalent thulium or ytterbium ions have been synthesized in the form of thin hexagonal plates. The reduced phonon Power (�?20 cm ⁻�?) was confirmed employing Raman spectroscopy. Samples were researched also by using optical absorption