The nonradiative changeover charges follow the method WNR = W (0) exp(-alphap), exactly where p is the volume of phonons matching the Vitality hole. The nonradiative transition costs of Er3+ show temperature dependence in line with the multiphonon rest principle. In Tm3+ the temperature dependence of nonradiative rest premiums is https://er-yb-yab-crystal30628.link4blogs.com/54578530/er-yb-yab-crystal-can-be-fun-for-anyone