The nonradiative transition fees Stick to the system WNR = W (0) exp(-alphap), wherever p is the volume of phonons matching the Electrical power gap. The nonradiative transition rates of Er3+ show temperature dependence per the multiphonon peace principle. In Tm3+ the temperature dependence of nonradiative leisure charges is difficult https://rowanegeby.frewwebs.com/33672966/examine-this-report-on-er-yb-yab-crystal