The nonradiative changeover premiums Stick to the system WNR = W (0) exp(-alphap), where by p is the volume of phonons matching the Vitality gap. The nonradiative transition charges of Er3+ exhibit temperature dependence in keeping with the multiphonon peace principle. In Tm3+ the temperature dependence of nonradiative relaxation prices https://erybyabcrystal96173.blogstival.com/55191426/the-best-side-of-er-yb-yab-crystal