A fully relativistic approach to photon scattering and photoionization of alkali atoms

Adam Singor; Dmitry Fursa; Igor Bray; Robert McEachran

doi:10.3390/atoms9030042

A fully relativistic approach to photon scattering and photoionization of alkali atoms

Adam Singor^*, Dmitry Fursa, Igor Bray, Robert McEachran

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

A fully relativistic approach to calculating photoionization and photon-atom scattering cross sections for quasi one-electron atoms is presented. An extensive set of photoionization cross sections have been calculated for alkali atoms: Lithium, sodium, potassium, rubidium and cesium. The importance of relativistic effects and core polarization on the depth and position of the Cooper minimum in the photoionization cross section is investigated. Good agreement was found with previous Dirac-based B-spline R-matrix calculations of Zatsarinny and Tayal and recent experimental results.

Original language	English
Article number	42
Journal	Atoms
Volume	9
Issue number	3
DOIs	https://doi.org/10.3390/atoms9030042
Publication status	Published - Sept 2021

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abstract = "A fully relativistic approach to calculating photoionization and photon-atom scattering cross sections for quasi one-electron atoms is presented. An extensive set of photoionization cross sections have been calculated for alkali atoms: Lithium, sodium, potassium, rubidium and cesium. The importance of relativistic effects and core polarization on the depth and position of the Cooper minimum in the photoionization cross section is investigated. Good agreement was found with previous Dirac-based B-spline R-matrix calculations of Zatsarinny and Tayal and recent experimental results.",

keywords = "Alkali, Photoionization, Photon scattering, Raman, Rayleigh",

author = "Adam Singor and Dmitry Fursa and Igor Bray and Robert McEachran",

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AU - Singor, Adam

AU - Fursa, Dmitry

AU - Bray, Igor

AU - McEachran, Robert

PY - 2021/9

Y1 - 2021/9

N2 - A fully relativistic approach to calculating photoionization and photon-atom scattering cross sections for quasi one-electron atoms is presented. An extensive set of photoionization cross sections have been calculated for alkali atoms: Lithium, sodium, potassium, rubidium and cesium. The importance of relativistic effects and core polarization on the depth and position of the Cooper minimum in the photoionization cross section is investigated. Good agreement was found with previous Dirac-based B-spline R-matrix calculations of Zatsarinny and Tayal and recent experimental results.

AB - A fully relativistic approach to calculating photoionization and photon-atom scattering cross sections for quasi one-electron atoms is presented. An extensive set of photoionization cross sections have been calculated for alkali atoms: Lithium, sodium, potassium, rubidium and cesium. The importance of relativistic effects and core polarization on the depth and position of the Cooper minimum in the photoionization cross section is investigated. Good agreement was found with previous Dirac-based B-spline R-matrix calculations of Zatsarinny and Tayal and recent experimental results.

KW - Alkali

KW - Photoionization

KW - Photon scattering

KW - Raman

KW - Rayleigh

UR - http://www.scopus.com/inward/record.url?scp=85111008533&partnerID=8YFLogxK

U2 - 10.3390/atoms9030042

DO - 10.3390/atoms9030042

M3 - Article

SN - 2218-2004

VL - 9

JO - Atoms

JF - Atoms

IS - 3

M1 - 42

ER -

A fully relativistic approach to photon scattering and photoionization of alkali atoms

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