THE 2-MINUTE RULE FOR FE²�?ZNS CRYSTAL

KLuS two solitary crystal samples undoped and doped with a very low (five %) or higher (38 %) concentration of trivalent thulium or ytterbium ions were synthesized in the form of slim hexagonal plates. The minimal phonon Vitality (�?20 cm ⁻�?) was confirmed using Raman spectroscopy. Samples were examined also by making use of optical absorpti