The nonradiative transition costs follow the system WNR = W (0) exp(-alphap), where by p is the quantity of phonons matching the Electricity hole. The nonradiative transition rates of Er3+ show temperature dependence in step with the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative peace fees is https://erybyabcrystal82603.blogsidea.com/39534020/not-known-factual-statements-about-er-yb-yab-crystal