The nonradiative changeover charges Stick to the system WNR = W (0) exp(-alphap), where p is the number of phonons matching the Electrical power gap. The nonradiative changeover prices of Er3+ show temperature dependence according to the multiphonon leisure concept. In Tm3+ the temperature dependence of nonradiative rest rates is https://gtr-ktpcrystal17285.activosblog.com/33745946/not-known-factual-statements-about-er-yb-yab-crystal