The nonradiative changeover charges follow the method WNR = W (0) exp(-alphap), the place p is the number of phonons matching the Strength hole. The nonradiative transition prices of Er3+ show temperature dependence in line with the multiphonon peace idea. In Tm3+ the temperature dependence of nonradiative rest costs is https://erybyabcrystal18416.theisblog.com/33343354/5-easy-facts-about-er-yb-yab-crystal-described