The nonradiative transition costs Stick to the formula WNR = W (0) exp(-alphap), where by p is the volume of phonons matching the Vitality hole. The nonradiative transition costs of Er3+ show temperature dependence in keeping with the multiphonon rest concept. In Tm3+ the temperature dependence of nonradiative rest rates https://erybyabcrystal19429.bloggazza.com/33785911/details-fiction-and-er-yb-yab-crystal