The nonradiative transition charges follow the method WNR = W (0) exp(-alphap), where by p is the amount of phonons matching the Electrical power gap. The nonradiative transition fees of Er3+ exhibit temperature dependence per the multiphonon peace theory. In Tm3+ the temperature dependence of nonradiative rest charges is complex https://er-yb-yab-crystal51739.blogars.com/32122938/5-simple-statements-about-er-yb-yab-crystal-explained