The nonradiative transition premiums follow the components WNR = W (0) exp(-alphap), the place p is the amount of phonons matching the energy hole. The nonradiative transition premiums of Er3+ exhibit temperature dependence consistent with the multiphonon rest theory. In Tm3+ the temperature dependence of nonradiative leisure prices is intricate https://andremkfav.gynoblog.com/32362322/not-known-details-about-er-yb-yab-crystal