The nonradiative changeover charges follow the system WNR = W (0) exp(-alphap), in which p is the quantity of phonons matching the energy hole. The nonradiative changeover rates of Er3+ exhibit temperature dependence in step with the multiphonon peace idea. In Tm3+ the temperature dependence of nonradiative leisure premiums is https://er-yb-yab-crystal51739.blogsidea.com/39502077/facts-about-er-yb-yab-crystal-revealed