The nonradiative changeover premiums follow the formula WNR = W (0) exp(-alphap), where p is the volume of phonons matching the Electrical power hole. The nonradiative changeover costs of Er3+ show temperature dependence in step with the multiphonon relaxation idea. In Tm3+ the temperature dependence of nonradiative peace premiums is https://er-yb-yab-crystal29517.suomiblog.com/little-known-facts-about-er-yb-yab-crystal-48917610