The nonradiative transition costs follow the system WNR = W (0) exp(-alphap), exactly where p is the quantity of phonons matching the energy gap. The nonradiative changeover rates of Er3+ exhibit temperature dependence in keeping with the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative leisure fees is https://erybyabcrystal28406.life3dblog.com/32145578/5-simple-statements-about-er-yb-yab-crystal-explained