Mb. Shabaeva, Corrections for the electron-electron interaction to the hyperfine structure of lithium-like multiply charged ions, OPT SPECTRO, 86(3), 1999, pp. 317-319
Corrections for the electron-electron interaction of the first order in 1/Z
(Z is the nucleus charge) are calculated for the hyperfine structure of th
e lithium-like multiply charged ions with Z = 10-90 taking into account a f
inite nucleus size. The contribution of a finite nucleus charge to the corr
ection for the electron-electron interaction is found to change from 0.1 to
19% with increasing Z from 10 to 90.