The nonradiative transition charges Stick to the method WNR = W (0) exp(-alphap), in which p is the amount of phonons matching the Vitality gap. The nonradiative changeover charges of Er3+ show temperature dependence in line with the multiphonon leisure principle. In Tm3+ the temperature dependence of nonradiative relaxation rates https://cruzuvvsp.actoblog.com/33803094/the-smart-trick-of-er-yb-yab-crystal-that-nobody-is-discussing