The nonradiative transition charges follow the components WNR = W (0) exp(-alphap), the place p is the number of phonons matching the Vitality hole. The nonradiative transition rates of Er3+ show temperature dependence according to the multiphonon relaxation principle. In Tm3+ the temperature dependence of nonradiative leisure rates is challenging https://er-yb-yab-crystal41728.blogdun.com/33922274/a-secret-weapon-for-er-yb-yab-crystal