Non-physical consequences of the muffin-tin-type intra-molecular potential

• Authors: Miron Amusia , Arkadiy Baltenkov
• Languages of publication: EN

Abstracts

EN

We demonstrate, using a simple model, that, in the frame of muffin-tin-like potential, non-physical peculiarities appear in molecular photoionization cross-sections that are a consequence of “jumps” in the potential and its first derivative at some radius. The magnitude of non-physical effects is of the same order as the physical oscillations in the cross-section of a diatomicmolecule. The role of the size of these “jumps” is illustrated by choosing three values for it. The results obtained are connected to the previously studied effect of non-analytic behavior as a function of r, the potential V(r) acting upon a particle on its photoionization cross-section. In reality, such potential has to be analytic in magnitude and have a first derivative function in r. The introduction of non-analytic features in model V(r) leads to non-physical features - oscillations, additional maxima, and so forth - in the corresponding cross-section.

Keywords

EN

muffin-tin potential; barrier penetration; molecular photoionization

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2010
• Volume: 8
• Issue: 5
• Pages: 825-832

Dates

published

1 - 10 - 2010

online

22 - 7 - 2010

Contributors

author

Miron Amusia

author

Arkadiy Baltenkov

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Identifiers

DOI

10.2478/s11534-009-0162-1