The nonradiative changeover fees Keep to the formula WNR = W (0) exp(-alphap), wherever p is the volume of phonons matching the Electricity hole. The nonradiative changeover rates of Er3+ exhibit temperature dependence according to the multiphonon relaxation principle. In Tm3+ the temperature dependence of nonradiative peace rates is difficult https://erybyabcrystal17270.blogginaway.com/33742970/er-yb-yab-crystal-for-dummies