We present the application of the spherically averaged continuum model to the evaluation of molecular photoelectron and resonant Auger electron spectra. In this model, the continuum wave function is obtained in a numerically efficient way by solving the radial Schrödinger equation with a spherically averaged molecular potential. Different approximations to the Auger transition matrix element and, in particular, the one-center approximation are thoroughly tested against experimental data for the CH4, O2, NO2, and pyrimidine molecules. In general, this approach appears to estimate the shape of the photoelectron and autoionization spectra as well as the total Auger decay rates with reasonable accuracy, allowing for the interpretation of experimental results.
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21 February 2020
Research Article|
February 21 2020
Multi-reference protocol for (auto)ionization spectra: Application to molecules
Gilbert Grell
;
Gilbert Grell
a)
Institut für Physik, Universität Rostock
, Albert-Einstein-Str. 23-24, 18059 Rostock, Germany
a)Author to whom correspondence should be addressed: [email protected]
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Sergey I. Bokarev
Sergey I. Bokarev
Institut für Physik, Universität Rostock
, Albert-Einstein-Str. 23-24, 18059 Rostock, Germany
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a)Author to whom correspondence should be addressed: [email protected]
J. Chem. Phys. 152, 074108 (2020)
Article history
Received:
December 11 2019
Accepted:
January 30 2020
Citation
Gilbert Grell, Sergey I. Bokarev; Multi-reference protocol for (auto)ionization spectra: Application to molecules. J. Chem. Phys. 21 February 2020; 152 (7): 074108. https://doi.org/10.1063/1.5142251
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