The nonradiative changeover prices Keep to the system WNR = W (0) exp(-alphap), in which p is the quantity of phonons matching the Strength gap. The nonradiative changeover prices of Er3+ exhibit temperature dependence consistent with the multiphonon peace concept. In Tm3+ the temperature dependence of nonradiative peace premiums is https://erybyabcrystal18564.blogkoo.com/er-yb-yab-crystal-can-be-fun-for-anyone-52541401