Nuclear Shape Effect on the g Factor of Hydrogenlike Ions
  The nuclear shape correction to the g factor of a bound electron in 1S-state is calculated for a number of nuclei in the range of charge numbers from Z=6 up to Z=92. The leading relativistic deformation correction has been derived analytically and also its influence on one-loop quantum electrodynamic terms has been evaluated. We show the leading corrections to become significant for mid-Z ions and for very heavy elements to even reach the 10^(-6) level. 
J. Zatorski, N. S. Oreshkina, C. H. Keitel and Z. Harman
physics.atom-ph