The nonradiative transition prices Stick to the formula WNR = W (0) exp(-alphap), where p is the quantity of phonons matching the Vitality gap. The nonradiative changeover charges of Er3+ show temperature dependence in step with the multiphonon peace idea. In Tm3+ the temperature dependence of nonradiative peace costs is https://er-yb-yab-crystal37585.mdkblog.com/39077282/the-smart-trick-of-er-yb-yab-crystal-that-no-one-is-discussing