The nonradiative transition premiums Stick to the formula WNR = W (0) exp(-alphap), in which p is the number of phonons matching the energy hole. The nonradiative transition rates of Er3+ exhibit temperature dependence in step with the multiphonon leisure principle. In Tm3+ the temperature dependence of nonradiative relaxation costs https://trentonsivis.tribunablog.com/little-known-facts-about-er-yb-yab-crystal-49165907