The nonradiative transition charges Keep to the system WNR = W (0) exp(-alphap), wherever p is the number of phonons matching the Vitality gap. The nonradiative transition charges of Er3+ show temperature dependence in keeping with the multiphonon relaxation idea. In Tm3+ the temperature dependence of nonradiative rest rates is https://erybyabcrystal95161.eedblog.com/33275572/er-yb-yab-crystal-an-overview