The nonradiative transition rates Keep to the components WNR = W (0) exp(-alphap), in which p is the number of phonons matching the Power gap. The nonradiative changeover premiums of Er3+ show temperature dependence in step with the multiphonon peace principle. In Tm3+ the temperature dependence of nonradiative leisure costs https://er-yb-yab-crystal41962.onesmablog.com/the-best-side-of-er-yb-yab-crystal-75489215