The nonradiative changeover fees Stick to the components WNR = W (0) exp(-alphap), the place p is the volume of phonons matching the energy gap. The nonradiative transition charges of Er3+ show temperature dependence in line with the multiphonon leisure idea. In Tm3+ the temperature dependence of nonradiative rest premiums https://beaumoolm.iyublog.com/33944135/the-best-side-of-er-yb-yab-crystal