The nonradiative transition charges Adhere to the formulation WNR = W (0) exp(-alphap), where by p is the volume of phonons matching the Strength gap. The nonradiative changeover fees of Er3+ show temperature dependence consistent with the multiphonon relaxation principle. In Tm3+ the temperature dependence of nonradiative rest fees is https://erybyabcrystal07394.madmouseblog.com/13624568/top-guidelines-of-er-yb-yab-crystal