The nonradiative changeover prices Keep to the system WNR = W (0) exp(-alphap), in which p is the volume of phonons matching the Vitality hole. The nonradiative transition premiums of Er3+ exhibit temperature dependence per the multiphonon peace theory. In Tm3+ the temperature dependence of nonradiative rest premiums is complicated https://cashtqllk.blogdiloz.com/32194485/not-known-factual-statements-about-er-yb-yab-crystal