The nonradiative transition premiums follow the system WNR = W (0) exp(-alphap), the place p is the number of phonons matching the Strength hole. The nonradiative transition premiums of Er3+ show temperature dependence per the multiphonon peace theory. In Tm3+ the temperature dependence of nonradiative rest fees is difficult because https://riveregfdz.worldblogged.com/39258636/er-yb-yab-crystal-an-overview