The nonradiative changeover fees Keep to the formula WNR = W (0) exp(-alphap), where by p is the amount of phonons matching the Strength hole. The nonradiative transition premiums of Er3+ show temperature dependence per the multiphonon peace theory. In Tm3+ the temperature dependence of nonradiative leisure rates is complex https://er-yb-yab-crystal49403.blogars.com/33635644/5-simple-statements-about-er-yb-yab-crystal-explained