The nonradiative transition premiums Keep to the formula WNR = W (0) exp(-alphap), where p is the volume of phonons matching the Electricity gap. The nonradiative changeover costs of Er3+ show temperature dependence consistent with the multiphonon rest concept. In Tm3+ the temperature dependence of nonradiative peace fees is intricate https://collinhhgdz.mybloglicious.com/53455745/er-yb-yab-crystal-an-overview