The nonradiative transition premiums follow the formula WNR = W (0) exp(-alphap), exactly where p is the amount of phonons matching the Vitality hole. The nonradiative transition rates of Er3+ exhibit temperature dependence according to the multiphonon leisure idea. In Tm3+ the temperature dependence of nonradiative relaxation rates is difficult https://erybyabcrystal51849.ssnblog.com/33841254/5-essential-elements-for-er-yb-yab-crystal