The nonradiative transition charges Keep to the method WNR = W (0) exp(-alphap), where p is the volume of phonons matching the Strength hole. The nonradiative changeover prices of Er3+ show temperature dependence according to the multiphonon peace idea. In Tm3+ the temperature dependence of nonradiative peace costs is complicated https://er-yb-yab-crystal41739.oblogation.com/32477911/er-yb-yab-crystal-for-dummies