Title




Relativistic theory of an inhomogeneous electron liquid in relation to atomic binding energies
 
Author




 
Abstract




Experimentally determined ionization potentials in the literature are used to plot the binding energies for neutral atoms as a function of atomic number Z for Z = 230, 32, 36, 42. From this pretty smooth plot we have subtracted nonrelativistic HartreeFock binding energies, using both available numerical values and the almost analytical result, based on the nonrelativistic ThomasFermi statistical theory valid for large Z. The difference is still relatively smooth. For Me, with Z = 42, the difference is about 70 atomic units. This difference is then analyzed using First relativistic theory of an inhomogeneous electron liquid and then the Local Density Approximation (LDA), and for Mo their results yield approximately 88 and 67 atomic units respectively. We infer that a highly accurate relativistic manyelectron theory will therefore be needed before reliable electron correlation energies can be extracted from the experimental binding energies for atoms heavier than Argon. This fact has prompted us to use available LDA calculations to confront three theoretical predictions of the Z dependence of nonrelativistic electron correlation energies at large Z. 
 
Language




English
 
Source (journal)




Physics and chemistry of liquids.  London
 
Publication




London
:
2004
 
ISSN




00319104
 
Volume/pages




42
:6
(2004)
, p. 589595
 
ISI




000226381900006
 
Full text (Publisher's DOI)




 
