Eur. Phys. J. D (2017) 71: 175
https://doi.org/10.1140/epjd/e2017-70833-3

Regular Article

Long-range dispersion interactions between Li and rare-gas atoms^*

Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, P.R. China

^a e-mail: zhangdh@nwnu.edu.cn
^b e-mail: phyjiang@yeah.net

Received: 31 December 2016
Received in final form: 24 April 2017
Published online: 4 July 2017

Abstract

The energy levels, oscillator strength and dipole scalar polarizabilities of Li atoms are calculated by using the relativistic semiempirical-core-potential method (RCICP). The dispersion coefficients C₆ between ground 2s_1/2 2p_1/2,2p_3/2 states of Li atom and the ground state of rare gas atoms (Ne, Ar, Kr, Xe) are calculated in JJ coupled states, in which the spin-orbital interactions are included. Present results are in good agreement with other available results.