The nonradiative transition fees Keep to the formulation WNR = W (0) exp(-alphap), wherever p is the quantity of phonons matching the Power gap. The nonradiative transition rates of Er3+ show temperature dependence per the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative peace fees is sophisticated because https://er-yb-yab-crystal29406.alltdesign.com/5-simple-statements-about-er-yb-yab-crystal-explained-52458848