The nonradiative transition charges follow the system WNR = W (0) exp(-alphap), in which p is the volume of phonons matching the Power hole. The nonradiative changeover charges of Er3+ exhibit temperature dependence according to the multiphonon rest principle. In Tm3+ the temperature dependence of nonradiative relaxation charges is sophisticated https://er-yb-yab-crystal31738.boyblogguide.com/33790306/getting-my-er-yb-yab-crystal-to-work