Triple ionization of atomic Cd involving<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mn>4</mml:mn><mml:msup><mml:mi>p</mml:mi><mml:mrow><mml:mo>−</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mn>4</mml:mn><mml:msup><mml:mi>s</mml:mi><mml:mrow><mml:mo>−</mml:mo><mml:mn>1</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>inner-shell holes

Andersson, Jonas; Beerwerth, R.; Linusson, P.; Eland, J. H. D.; Zhaunerchyk, Vitali; Fritzsche, S.; Feifel, Raimund

doi:10.1103/physreva.92.023414

Cited by 12 publications

(12 citation statements)

References 22 publications

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“…Therefore, all wave functions were computed in the single-configuration approximation. This approach, detailed in Buth et al (2018), neglects effects due to CI that become crucial for the description of shake-processes as discussed by Andersson et al (2015) and Schippers et al (2016a).…”

Section: Mcdhf Calculationsmentioning

confidence: 99%

Near L-edge Single and Multiple Photoionization of Triply Charged Iron Ions

Beerwerth

Buhr

Perry‐Sassmannshausen

et al. 2019

ApJ

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Relative cross sections for m-fold photoionization (m=1,K,5) of Fe 3+ by single-photon absorption were measured employing the photon-ion merged-beams setup PIPE at the PETRA III synchrotron light source operated at DESY in Hamburg, Germany. The photon energies used spanned the range of 680-950 eV, covering both the photoexcitation resonances from the 2p and 2s shells, as well as the direct ionization from both shells. Multiconfiguration Dirac-Hartree-Fock (MCDHF) calculations were performed to simulate the total photoexcitation spectra. Good agreement was found with the experimental results. These computations helped to assign several strong resonance features to specific transitions. We also carried out Hartree-Fock calculations with relativistic extensions taking into account both photoexcitation and photoionization. Furthermore, we performed extensive MCDHF calculations of the Auger cascades that result when an electron is removed from the 2p and 2s shells of Fe 3+. Our theoretically predicted charge-state fractions are in good agreement with the experimental results, representing a substantial improvement over previous theoretical calculations. The main reason for the disagreement with the previous calculations is their lack of inclusion of slow Auger decays of several configurations that can only proceed when accompanied by de-excitation of two electrons. In such cases, this additional shake-down transition of a (sub)valence electron is required to gain the necessary energy for the release of the Auger electron.

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Section: Mcdhf Calculationsmentioning

confidence: 99%

Near L-edge Single and Multiple Photoionization of Triply Charged Iron Ions

Beerwerth

Buhr

Perry‐Sassmannshausen

et al. 2019

ApJ

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“…This model is very similar to the one previously employed in Ref. [10]. Due to the large number of intermediate states we are unable to provide a thorough analysis of possible shake-up transitions as was done in Ref.…”

Section: Theorymentioning

confidence: 98%

“…Due to the large number of intermediate states we are unable to provide a thorough analysis of possible shake-up transitions as was done in Ref. [10].…”

Section: Theorymentioning

confidence: 99%

“…That is, only transitions between already occupied configurations are considered, but not additional valence shake-up states of the form 6s → 7s and 6s → 6p as in Ref. [10]. Coster-Kronig spectrum associated with the decay of the 4d −1 states in atomic Hg.…”

Section: Theorymentioning

confidence: 99%

“…These studies demonstrate the wealth of information that can be obtained from this kind of experiment. However, apart from some studies on, for instance, double and triple ionization of Cd [9,10] and studies on Auger decay pathways leading to multiply charged states in Hg [11][12][13][14] upon the formation of shallow inner-shell vacancies, the extent of studies on multiple ionization of metal atoms based on coincidence techniques is still very limited.…”

Section: Introductionmentioning

confidence: 99%

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Auger decay of 4d inner-shell holes in atomic Hg leading to triple ionization

et al. 2017

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Formation of triply ionized states upon the creation of 4d inner-shell holes in atomic Hg is investigated by using synchrotron radiation of 730 eV photon energy and a versatile multielectron coincidence detection technique in combination with multiconfiguration Dirac-Fock calculations. By carefully selecting Coster-Kronig electrons detected only in coincidence with a 4d photoelectron, the Coster-Kronig spectrum has been extracted and the corresponding branching ratios of the 4d hole have been determined. The results are found to differ from previously established experimental ratios based on electron impact ionization but to agree now better with theory. We also present an Auger cascade analysis of pathways leading to triply ionized states of atomic Hg upon removal of a 4d inner-shell electron.

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A fresh computational approach to atomic structures, processes and cascades

Fritzsche

2019

Computer Physics Communications

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Triple ionization of atomic Cd involving4p−1and4s−1inner-shell holes

Cited by 12 publications

References 22 publications

Near L-edge Single and Multiple Photoionization of Triply Charged Iron Ions

Near L-edge Single and Multiple Photoionization of Triply Charged Iron Ions

Auger decay of 4d inner-shell holes in atomic Hg leading to triple ionization

A fresh computational approach to atomic structures, processes and cascades

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