The nonradiative transition charges follow the method WNR = W (0) exp(-alphap), exactly where p is the quantity of phonons matching the Power gap. The nonradiative changeover prices of Er3+ exhibit temperature dependence according to the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative leisure rates is challenging https://erybyabcrystal97418.isblog.net/the-basic-principles-of-er-yb-yab-crystal-51954163