The nonradiative transition premiums follow the formulation WNR = W (0) exp(-alphap), exactly where p is the quantity of phonons matching the energy gap. The nonradiative changeover rates of Er3+ exhibit temperature dependence in step with the multiphonon relaxation principle. In Tm3+ the temperature dependence of nonradiative relaxation rates is https://erybyabcrystal97072.total-blog.com/the-smart-trick-of-er-yb-yab-crystal-that-no-one-is-discussing-58374136