The nonradiative transition rates Keep to the formula WNR = W (0) exp(-alphap), the place p is the number of phonons matching the Electricity gap. The nonradiative changeover fees of Er3+ show temperature dependence per the multiphonon peace idea. In Tm3+ the temperature dependence of nonradiative rest costs is sophisticated https://mariotrnjf.p2blogs.com/32161936/not-known-factual-statements-about-er-yb-yab-crystal