The nonradiative changeover rates Stick to the system WNR = W (0) exp(-alphap), in which p is the number of phonons matching the Power gap. The nonradiative transition rates of Er3+ show temperature dependence per the multiphonon leisure principle. In Tm3+ the temperature dependence of nonradiative peace fees is intricate https://felixlqqoq.izrablog.com/33667850/5-essential-elements-for-er-yb-yab-crystal