The nonradiative transition fees Keep to the formula WNR = W (0) exp(-alphap), wherever p is the number of phonons matching the Electricity gap. The nonradiative transition premiums of Er3+ show temperature dependence per the multiphonon peace theory. In Tm3+ the temperature dependence of nonradiative relaxation costs is intricate from https://er-yb-yab-crystal74172.blog-ezine.com/33301293/er-yb-yab-crystal-an-overview