文献类型：期刊文献

英文题名：Theoretical calculation of ionization potential and term energy of the ground states 1S²2s of lithium-like systems from Z=21 to 30

作者：Ge, ZM; Wang, ZW; Zhou, YJ

机构：[1]E China Univ Sci & Technol, Dept Phys, Shanghai 200237, Peoples R China;[2]Jilin Univ, Inst Atom & Mol Phys, Changchun 130023, Peoples R China;[3]Liaoning Normal Univ, Dept Phys, Dalian 110629, Peoples R China

年份：2004

卷号：53

期号：1

起止页码：42

外文期刊名：ACTA PHYSICA SINICA

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000188285500009)】；

语种：英文

外文关键词：lithium-like systems; full core plus correlation; ionization energy; term-energy

摘要：In the paper, the full-core plus correlation (FCPC) and the minimizing the expectation value of the Hamiltonian method is extended to calculate the non-relativistic energies and the wave functions of 1s(2)2s states for the lithium-like systems from Z = 21 to 30. The mass-polarization and the relativistic correction included the kinetic-energy correction, the Darwin term, the electron-electron contact term, and the orbit-orbit interaction are calculated perturbatively as first-order correction. The contribution from quantum electrodynamic (QED) is also included by using the effective nuclear charge formula. The ionization potential and term energies of the ground states ls(2)2s are given and compared with other's theoretical calculation and experimental results. It is shown that the FCPC methods are also effective to theoretical calculation of the ionic structure for high nuclear ion of lithium-like systems.