The nonradiative transition premiums follow the components WNR = W (0) exp(-alphap), where p is the volume of phonons matching the Strength gap. The nonradiative changeover premiums of Er3+ show temperature dependence in line with the multiphonon rest principle. In Tm3+ the temperature dependence of nonradiative rest prices is difficult https://martinhihea.blog2news.com/33790505/the-greatest-guide-to-er-yb-yab-crystal