The nonradiative transition premiums Keep to the formula WNR = W (0) exp(-alphap), wherever p is the number of phonons matching the Electrical power hole. The nonradiative transition costs of Er3+ show temperature dependence per the multiphonon peace theory. In Tm3+ the temperature dependence of nonradiative rest premiums is complex https://lanejkheb.actoblog.com/33819622/er-yb-yab-crystal-an-overview