The nonradiative transition prices Adhere to the formulation WNR = W (0) exp(-alphap), where p is the quantity of phonons matching the energy gap. The nonradiative changeover costs of Er3+ show temperature dependence per the multiphonon rest theory. In Tm3+ the temperature dependence of nonradiative relaxation fees is complex from https://beckettimonm.nizarblog.com/34960001/er-yb-yab-crystal-an-overview