The nonradiative changeover prices follow the method WNR = W (0) exp(-alphap), where p is the volume of phonons matching the energy gap. The nonradiative transition charges of Er3+ show temperature dependence according to the multiphonon rest concept. In Tm3+ the temperature dependence of nonradiative rest fees is difficult because https://zanderqqmjc.bloggerswise.com/40313984/5-simple-statements-about-er-yb-yab-crystal-explained