The nonradiative transition costs follow the components WNR = W (0) exp(-alphap), in which p is the volume of phonons matching the Power hole. The nonradiative changeover rates of Er3+ exhibit temperature dependence in keeping with the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative leisure rates is https://erybyabcrystal86395.kylieblog.com/35350318/er-yb-yab-crystal-an-overview