EXCITATION ENERGIES OF 1s2nd AND 1s2nf STATES FOR THE LITHIUM ISOELECTRONIC SEQUENCE
Qu Lian-hua (屈连华)a, Wang Zhi-wen (王治文)b, Li Bai-wen (李白文)a
a Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China; b Department of Mathematics and Physics, Wuyi University, Jiangmen 529020, China
Abstract The nonrelativistic energies of the 1s2nd and 1s2nf(n=6, 7, 8 and 9) states for the lithium isoelectronic sequence from Li I to Ne VⅢ are calculated by using a full core plus correlation method with multiconfiguration interaction wave function. Relativistic and mass-polarization effects on the energy are evaluated as the first-order pertur bation theory. In most cases with nuclear charge, Z≤7, the agreement between our predicted excitation energies and the experimental data is less than 1cm-1.
Received: 12 October 1998
Accepted manuscript online:
PACS:
31.15.ve
(Electron correlation calculations for atoms and ions: ground state)
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 19474016).
Cite this article:
Qu Lian-hua (屈连华), Wang Zhi-wen (王治文), Li Bai-wen (李白文) EXCITATION ENERGIES OF 1s2nd AND 1s2nf STATES FOR THE LITHIUM ISOELECTRONIC SEQUENCE 1999 Acta Physica Sinica (Overseas Edition) 8 423
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