The nonradiative transition costs follow the system WNR = W (0) exp(-alphap), the place p is the volume of phonons matching the Vitality hole. The nonradiative transition costs of Er3+ show temperature dependence per the multiphonon rest principle. In Tm3+ the temperature dependence of nonradiative peace charges is sophisticated from https://er-yb-yab-crystal51739.affiliatblogger.com/85321577/the-greatest-guide-to-er-yb-yab-crystal