The nonradiative transition charges follow the system WNR = W (0) exp(-alphap), in which p is the quantity of phonons matching the Electricity hole. The nonradiative changeover prices of Er3+ show temperature dependence in step with the multiphonon relaxation concept. In Tm3+ the temperature dependence of nonradiative peace charges is https://erybyabcrystal85183.idblogmaker.com/32423769/little-known-facts-about-er-yb-yab-crystal