The nonradiative changeover costs Keep to the formulation WNR = W (0) exp(-alphap), wherever p is the number of phonons matching the Strength hole. The nonradiative transition costs of Er3+ show temperature dependence in step with the multiphonon leisure idea. In Tm3+ the temperature dependence of nonradiative relaxation charges is https://erybyabcrystal41852.onzeblog.com/33190442/the-definitive-guide-to-er-yb-yab-crystal