The nonradiative transition costs Stick to the formulation WNR = W (0) exp(-alphap), the place p is the number of phonons matching the Vitality hole. The nonradiative transition costs of Er3+ show temperature dependence according to the multiphonon relaxation principle. In Tm3+ the temperature dependence of nonradiative relaxation rates is https://erybyabcrystal18418.ttblogs.com/12881986/top-guidelines-of-er-yb-yab-crystal