The nonradiative transition rates Stick to the method WNR = W (0) exp(-alphap), in which p is the quantity of phonons matching the Strength hole. The nonradiative changeover premiums of Er3+ show temperature dependence in step with the multiphonon peace concept. In Tm3+ the temperature dependence of nonradiative peace charges https://er-yb-yab-crystal42850.techionblog.com/34840941/er-yb-yab-crystal-an-overview