The nonradiative changeover costs follow the system WNR = W (0) exp(-alphap), in which p is the volume of phonons matching the Vitality hole. The nonradiative transition charges of Er3+ show temperature dependence in step with the multiphonon peace idea. In Tm3+ the temperature dependence of nonradiative rest costs is https://er-yb-yab-crystal29527.ka-blogs.com/86341949/5-simple-statements-about-er-yb-yab-crystal-explained