The nonradiative changeover costs Keep to the formulation WNR = W (0) exp(-alphap), where by p is the volume of phonons matching the Power gap. The nonradiative transition charges of Er3+ show temperature dependence in keeping with the multiphonon relaxation theory. In Tm3+ the temperature dependence of nonradiative leisure costs https://er-yb-yab-crystal54085.luwebs.com/33775021/rumored-buzz-on-er-yb-yab-crystal