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 premiums of Er3+ show temperature dependence in step with the multiphonon peace theory. In Tm3+ the temperature dependence of nonradiative rest costs is https://andyyvtnf.canariblogs.com/er-yb-yab-crystal-can-be-fun-for-anyone-48209676