Internal Conversion Coefficients with Relativistic Hartree-Fock Model for the Deformed Region

Bhalla, C. P.

doi:10.1103/physrev.157.1136

Cited by 31 publications

(2 citation statements)

References 33 publications

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“…The eigenvalues for a uniform charge distribution are within the limits of error in agreement with those obtained by Bhalla. 22 Most experimental determinations of electron binding energies are made on solids, while the theoretical investigations described here are concerned with free atoms. Experimentally, "chemical" effects, i. e., variation in the binding energy between different chemical compounds, of the order of 5-10 eV have been observed.…”

Section: Results and Comparison With Experimentsmentioning

confidence: 99%

Relativistic Calculations of Electron Binding Energies by a Modified Hartree-Fock-Slater Method

1968

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23 Here the orbitals are taken to be real, (la I lb) denotes an overlap integral, (la\h\ lb) denotes a oneelectron integral, and (^lr6)=px 1 <^Q ? *(i)0 (i)x fdx 9 (1/r U *(2)(Mr) 12' ^y is the usual notation for a two-electron integral. We have multiplied (4) by (1 + i (la\ lb) 2 ) for convenience 24 Comparing the p(0) for the HF wave function of Li to the value for the very accurate Pekeris wave function [Phys. Rev. 126, 143 (1962)], p(0) = 13.704, we would Relativistic atomic wave functions and electron binding energies have been calculated by a modified Hartree-Fock-Slater method. The local exchange approximation, originally introduced by Slater, is modified in such a way that the total energy of the system is minimized. Approximate expressions for the optimum exchange potential are suggested for all atoms and ions. The total atomic energies and electron binding energies obtained by this method agree extremely well with the corresponding Hartree-Fock results in the cases where such data are available. Various corrections to the theoretical binding energies are discussed, in particular the effect of rearrangement during the ionization process. It is found that this effect is of importance for inner shells in all elements and is responsible for the main discrepancy between experimental and previous theoretical results for light and medium-heavy elements. For heavy elements other effects are of importance, and various possible sources of the residual discrepancy between theory and experiments are discussed.

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Section: Results and Comparison With Experimentsmentioning

confidence: 99%

Relativistic Calculations of Electron Binding Energies by a Modified Hartree-Fock-Slater Method

1968

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“…in both R and SB, screening was accounted for by using a TFD potential Other errors may result from the exclusion of higher-order terms in the perturbation expansion. For example, in the deformed nuclei region, the effect of the nuclear deformation on the electron wave functions for the Lj-subshell may increase the Lj-subshell internal conversion coefficients as much as six percent (34), even though a preliminary calculation in 1958…”

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confidence: 99%

Precise measurement of the internal conversion coefficient of the 45-keV transition in U-236

Duke

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Internal conversion investigations for the 127·37 keV E3 transition in134Cs

Martin

Merkert

1973

Czech J Phys

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Internal Conversion Coefficients with Relativistic Hartree-Fock Model for the Deformed Region

Cited by 31 publications

References 33 publications

Relativistic Calculations of Electron Binding Energies by a Modified Hartree-Fock-Slater Method

Relativistic Calculations of Electron Binding Energies by a Modified Hartree-Fock-Slater Method

Precise measurement of the internal conversion coefficient of the 45-keV transition in U-236

Internal conversion investigations for the 127·37 keV E3 transition in134Cs

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