The nonradiative transition premiums follow the system WNR = W (0) exp(-alphap), exactly where p is the quantity of phonons matching the Electrical power hole. The nonradiative changeover premiums of Er3+ show temperature dependence in line with the multiphonon relaxation theory. In Tm3+ the temperature dependence of nonradiative relaxation prices https://juliusegfdz.blogripley.com/33842820/little-known-facts-about-er-yb-yab-crystal