The nonradiative changeover premiums Keep to the system WNR = W (0) exp(-alphap), exactly where p is the volume of phonons matching the Electricity hole. The nonradiative transition rates of Er3+ show temperature dependence in keeping with the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative relaxation fees https://erybyabcrystal17394.diowebhost.com/88105407/top-guidelines-of-er-yb-yab-crystal