The nonradiative changeover charges Keep to the method WNR = W (0) exp(-alphap), wherever p is the quantity of phonons matching the Electricity hole. The nonradiative changeover fees of Er3+ show temperature dependence in line with the multiphonon relaxation idea. In Tm3+ the temperature dependence of nonradiative relaxation charges is https://shanejpqrr.loginblogin.com/42274907/little-known-facts-about-er-yb-yab-crystal