The nonradiative transition premiums follow the system WNR = W (0) exp(-alphap), wherever p is the quantity of phonons matching the energy gap. The nonradiative changeover rates of Er3+ show temperature dependence consistent with the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative peace fees is sophisticated with https://davidx479abz2.aboutyoublog.com/profile