THE BASIC PRINCIPLES OF FE²�?ZNS CRYSTAL

KLuS 2 single crystal samples undoped and doped with a very low (five %) or large (38 %) concentration of trivalent thulium or ytterbium ions were synthesized in the shape of thin hexagonal plates. The minimal phonon Strength (�?20 cm ⁻�?) was confirmed employing Raman spectroscopy. Samples were being researched also by utilizing optical abso