The nonradiative transition costs Keep to the method WNR = W (0) exp(-alphap), the place p is the quantity of phonons matching the Electricity hole. The nonradiative transition rates of Er3+ exhibit temperature dependence per the multiphonon leisure theory. In Tm3+ the temperature dependence of nonradiative relaxation charges is challenging https://er-yb-yab-crystal87418.ziblogs.com/33282974/a-secret-weapon-for-er-yb-yab-crystal