The nonradiative changeover premiums Stick to the components WNR = W (0) exp(-alphap), in which p is the volume of phonons matching the Vitality hole. The nonradiative changeover charges of Er3+ show temperature dependence consistent with the multiphonon rest principle. In Tm3+ the temperature dependence of nonradiative leisure fees is https://erybyabcrystal17395.therainblog.com/32091351/a-secret-weapon-for-er-yb-yab-crystal