The nonradiative transition charges Adhere to the system WNR = W (0) exp(-alphap), where p is the amount of phonons matching the energy gap. The nonradiative transition rates of Er3+ exhibit temperature dependence according to the multiphonon relaxation idea. In Tm3+ the temperature dependence of nonradiative rest rates is sophisticated https://er-yb-yab-crystal30741.xzblogs.com/74008605/top-guidelines-of-er-yb-yab-crystal