The nonradiative changeover costs Stick to the components WNR = W (0) exp(-alphap), wherever p is the volume of phonons matching the energy gap. The nonradiative changeover rates of Er3+ exhibit temperature dependence in step with the multiphonon peace principle. In Tm3+ the temperature dependence of nonradiative peace charges is https://er-yb-yab-crystal63951.ampedpages.com/examine-this-report-on-er-yb-yab-crystal-60153117