The nonradiative transition fees follow the formulation WNR = W (0) exp(-alphap), the place p is the number of phonons matching the Vitality hole. The nonradiative transition rates of Er3+ exhibit temperature dependence in line with the multiphonon relaxation theory. In Tm3+ the temperature dependence of nonradiative peace fees is https://er-yb-yab-crystal74062.pages10.com/5-essential-elements-for-er-yb-yab-crystal-68487346