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 prices of Er3+ show temperature dependence consistent with the multiphonon rest principle. In Tm3+ the temperature dependence of nonradiative relaxation charges is difficult https://er-yb-yab-crystal30627.tribunablog.com/a-secret-weapon-for-er-yb-yab-crystal-47614611