The nonradiative transition fees Keep to the formulation WNR = W (0) exp(-alphap), where p is the quantity of phonons matching the Power hole. The nonradiative transition costs of Er3+ show temperature dependence in keeping with the multiphonon relaxation theory. In Tm3+ the temperature dependence of nonradiative leisure premiums is https://er-yb-yab-crystal42674.life3dblog.com/32116558/5-simple-statements-about-er-yb-yab-crystal-explained