The nonradiative changeover prices Adhere to the formulation WNR = W (0) exp(-alphap), where p is the amount of phonons matching the Electrical power gap. The nonradiative transition premiums of Er3+ exhibit temperature dependence per the multiphonon peace theory. In Tm3+ the temperature dependence of nonradiative rest costs is complicated https://erybyabcrystal46890.tusblogos.com/35055819/details-fiction-and-er-yb-yab-crystal