The nonradiative transition costs Stick to the system WNR = W (0) exp(-alphap), exactly where p is the quantity of phonons matching the energy gap. The nonradiative changeover fees of Er3+ exhibit temperature dependence per the multiphonon relaxation idea. In Tm3+ the temperature dependence of nonradiative rest costs is complicated https://erybyabcrystal20852.ja-blog.com/34910515/er-yb-yab-crystal-an-overview