The nonradiative transition charges Stick to the system WNR = W (0) exp(-alphap), the place p is the number of phonons matching the Strength hole. The nonradiative transition premiums of Er3+ exhibit temperature dependence per the multiphonon peace theory. In Tm3+ the temperature dependence of nonradiative rest premiums is difficult https://dkdpswitchcrystal95172.thechapblog.com/32436411/5-simple-statements-about-er-yb-yab-crystal-explained