The nonradiative transition charges follow the system WNR = W (0) exp(-alphap), in which p is the volume of phonons matching the Vitality hole. The nonradiative transition costs of Er3+ show temperature dependence in step with the multiphonon rest theory. In Tm3+ the temperature dependence of nonradiative relaxation prices is https://er-yb-yab-crystal30627.designertoblog.com/64397618/er-yb-yab-crystal-for-dummies