The nonradiative transition rates follow the system WNR = W (0) exp(-alphap), the place p is the amount of phonons matching the Power gap. The nonradiative transition rates of Er3+ exhibit temperature dependence consistent with the multiphonon rest theory. In Tm3+ the temperature dependence of nonradiative rest premiums is sophisticated https://kameroncffcy.get-blogging.com/33762142/considerations-to-know-about-er-yb-yab-crystal