Approximate relativistic optimized potential method

T. Kreibich, E. K.U. Gross, E. Engel

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


Approximate semianalytical solutions of the integral equation for the relativistic optimized potential are constructed by extending a method recently proposed by Krieger, Li, and Iafrate [Phys. Lett. A 146, 256 (1990)] to the relativistic regime. The quality of the approximation is tested in the longitudinal [Formula Presented]-only limit where fully numerical solutions of the relativistic optimized effective potential integral equation are available for spherical atoms. The results obtained turn out to be in excellent agreement with the exact [Formula Presented]-only values. The proposed method provides significant improvement over the conventional relativistic local density approximation and generalized gradient approximation schemes.

Original languageAmerican English
Pages (from-to)138-148
Number of pages11
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number1
StatePublished - 1998
Externally publishedYes


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