The nonradiative transition prices Adhere to the method WNR = W (0) exp(-alphap), in which p is the amount of phonons matching the energy hole. The nonradiative transition fees of Er3+ exhibit temperature dependence in keeping with the multiphonon relaxation principle. In Tm3+ the temperature dependence of nonradiative peace prices https://er-yb-yab-crystal51482.bleepblogs.com/35262968/5-simple-statements-about-er-yb-yab-crystal-explained