The nonradiative transition costs Stick to the method WNR = W (0) exp(-alphap), the place p is the amount of phonons matching the Electricity hole. The nonradiative transition fees of Er3+ show temperature dependence per the multiphonon leisure idea. In Tm3+ the temperature dependence of nonradiative leisure charges is sophisticated https://connerkljgd.qodsblog.com/33267179/5-essential-elements-for-er-yb-yab-crystal