The nonradiative transition premiums Keep to the formulation WNR = W (0) exp(-alphap), wherever p is the amount of phonons matching the Electricity gap. The nonradiative changeover charges of Er3+ exhibit temperature dependence consistent with the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative rest premiums is difficult https://erybyabcrystal07394.kylieblog.com/33697462/5-simple-statements-about-er-yb-yab-crystal-explained