The nonradiative transition charges Keep to the components WNR = W (0) exp(-alphap), the place p is the volume of phonons matching the energy hole. The nonradiative changeover fees of Er3+ exhibit temperature dependence per the multiphonon peace concept. In Tm3+ the temperature dependence of nonradiative leisure rates is complicated https://beauacbyb.theideasblog.com/33625165/the-ultimate-guide-to-er-yb-yab-crystal