The nonradiative transition rates Keep to the formulation WNR = W (0) exp(-alphap), wherever p is the number of phonons matching the Strength hole. The nonradiative changeover prices of Er3+ exhibit temperature dependence according to the multiphonon relaxation theory. In Tm3+ the temperature dependence of nonradiative rest costs is complex https://elliottzbbyv.liberty-blog.com/33385844/not-known-details-about-er-yb-yab-crystal