Dispersion coefficients for H and He interactions with alkali-metal and alkaline-earth-metal atoms
نویسندگان
چکیده
منابع مشابه
Semiempirical calculation of van der Waals coefficients for alkali-metal and alkaline-earth-metal atoms
The van der Waals coefficients, C6 , C8, and C10 for the alkali-metal ~Li, Na, K, and Rb! and alkaline-earthmetal ~Be, Mg, Ca, and Sr! atoms are estimated by a combination of ab initio and semiempirical methods. Polarizabilities and atom-wall coefficients are given as a diagnostic check, and the lowest order nonadiabatic dispersion coefficient, D8 and the three-body coefficient, C9 are also pre...
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The dynamic scalar and tensor polarizabilities of the rare-earth-metal atoms are calculated with timedependent density functional theory. The frequency-dependent polarizabilities at imaginary frequencies are used to determine the isotropic and orientation-dependent van der Waals coefficients for the interactions of the rare-earth-metal atoms with helium atoms. The static polarizabilities are co...
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The dispersion coefficients C6, C8, and C10 for the interactions between H, He, and Li are calculated using variational wave functions in Hylleraas basis sets with multiple exponential scale factors. With these highly correlated wave functions, significant improvements are made upon previous calculations and our results provide definitive values for these coefficients. Typeset using REVTEX 1
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2003
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.68.062710