The nonradiative transition rates follow the method WNR = W (0) exp(-alphap), wherever p is the volume of phonons matching the Vitality hole. The nonradiative transition prices of Er3+ exhibit temperature dependence consistent with the multiphonon peace principle. In Tm3+ the temperature dependence of nonradiative relaxation rates is sophisticated via https://gregoryacbzr.mybjjblog.com/er-yb-yab-crystal-an-overview-45935035