The nonradiative transition rates follow the components WNR = W (0) exp(-alphap), where by p is the amount of phonons matching the Electricity gap. The nonradiative transition premiums of Er3+ show temperature dependence per the multiphonon relaxation principle. In Tm3+ the temperature dependence of nonradiative rest premiums is complicated from https://judahfhheb.dsiblogger.com/66126095/5-simple-statements-about-er-yb-yab-crystal-explained