The nonradiative changeover charges follow the system WNR = W (0) exp(-alphap), in which p is the volume of phonons matching the Vitality hole. The nonradiative transition charges of Er3+ show temperature dependence in line with the multiphonon leisure theory. In Tm3+ the temperature dependence of nonradiative rest costs is https://erybyabcrystal35680.bloguetechno.com/getting-my-er-yb-yab-crystal-to-work-69910467