The nonradiative changeover rates follow the components WNR = W (0) exp(-alphap), in which p is the volume of phonons matching the Electricity gap. The nonradiative transition fees of Er3+ show temperature dependence according to the multiphonon peace principle. In Tm3+ the temperature dependence of nonradiative leisure rates is challenging https://erickcedax.develop-blog.com/39928970/5-simple-statements-about-er-yb-yab-crystal-explained