NOT KNOWN FACTS ABOUT FE²�?ZNS CRYSTAL

KLuS 2 solitary crystal samples undoped and doped with a low (five %) or superior (38 %) concentration of trivalent thulium or ytterbium ions ended up synthesized in the form of slender hexagonal plates. The small phonon Vitality (�?20 cm ⁻�?) was confirmed working with Raman spectroscopy. Samples were being studied also by using optical abso