中国物理B ›› 2018, Vol. 27 ›› Issue (9): 93101-093101.doi: 10.1088/1674-1056/27/9/093101
• SPECIAL TOPIC—Recent advances in thermoelectric materials and devices • 上一篇 下一篇
Ground-state energy of beryllium atom with parameter perturbation method
Feng Wu(吴锋), Lijuan Meng(孟丽娟)
- Department of Physics, Yancheng Institute of Technology, Yancheng 224051, China
Ground-state energy of beryllium atom with parameter perturbation method
Feng Wu(吴锋), Lijuan Meng(孟丽娟)
- Department of Physics, Yancheng Institute of Technology, Yancheng 224051, China
摘要：
We present a perturbation study of the ground-state energy of the beryllium atom by incorporating double parameters in the atom's Hamiltonian. The eigenvalue of the Hamiltonian is then solved with a double-fold perturbation scheme, where the spin-spin interaction of electrons from different shells of the atom is also considered. Calculations show that the obtained ground-state energy is in satisfactory agreement with experiment. It is found that the Coulomb repulsion of the inner-shell electrons enhances the effective nuclear charge seen by the outer-shell electrons, and the shielding effect of the outer-shell electrons to the nucleus is also notable compared with that of the inner-shell electrons.
中图分类号: (Perturbation theory)
- 31.15.xp