The nonradiative changeover charges Stick to the formula WNR = W (0) exp(-alphap), where p is the amount of phonons matching the Electrical power gap. The nonradiative changeover prices of Er3+ show temperature dependence per the multiphonon relaxation idea. In Tm3+ the temperature dependence of nonradiative relaxation charges is complex https://er-yb-yab-crystal63951.collectblogs.com/78163211/the-smart-trick-of-er-yb-yab-crystal-that-no-one-is-discussing