The nonradiative transition prices Keep to the components WNR = W (0) exp(-alphap), where by p is the volume of phonons matching the Vitality gap. The nonradiative transition charges of Er3+ show temperature dependence in step with the multiphonon leisure theory. In Tm3+ the temperature dependence of nonradiative rest rates https://hectorbdczw.thenerdsblog.com/39052746/er-yb-yab-crystal-an-overview