The nonradiative transition premiums Stick to the components WNR = W (0) exp(-alphap), the place p is the number of phonons matching the Power gap. The nonradiative transition costs of Er3+ show temperature dependence in step with the multiphonon leisure idea. In Tm3+ the temperature dependence of nonradiative relaxation costs https://stephenabzwr.prublogger.com/32464067/5-simple-statements-about-er-yb-yab-crystal-explained