摘要
In the present work we used Hartree-Fock-Slater local-density discrete variational method to calculate the energy level of some rare earth doped BaF_(2) crystals and proposed that the Eu,Dy and Yb elements will change their valence from+3 to+2 under irradiation and thus change the optical properties of the crystals.The results show that this radiation effect model is in good agreement with experiments.
基金
Supported by the National Natural Science Foundation of China.
