High-resolution study of the Xe 4<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="italic">d</mml:mi></mml:mrow><mml:mrow><mml:mn>5</mml:mn><mml:mo>/</mml:mo><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>:4<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="italic">d</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn><mml:mo>/</mml:mo><mml:mn>2</mml

Ausmees, A.; Osborne, S. J.; Moberg, R.; Svensson, S.; Aksela, S.; Sairanen, O.‐P.; Kivimäki, A.; Brito, A. Naves de; Nõmmiste, E.; Jauhiainen, J.; Aksela, H.

doi:10.1103/physreva.51.855

Cited by 46 publications

(15 citation statements)

References 28 publications

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“…For xenon atoms, for example, the intensity ratio of the spin-orbit split components is far from statistical and strongly and nonmonotonously photon-energy dependent around 150 eV-even with observation at the ''magic'' angle to the radiation polarization plane. 27 Besides, as it is shown in Ref. 8, the kinetic energy dependence for bulk/surface ratios is very different at 55°and 90°observation relative to the light polarization plane.…”

Section: A From Model To Experimentsmentioning

confidence: 52%

The size of neutral free clusters as manifested in the relative bulk-to-surface intensity in core level photoelectron spectroscopy

Tchaplyguine

Marinho

Gisselbrecht

et al. 2004

The Journal of Chemical Physics

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A new approach for obtaining an estimate of the effective size of the free neutral clusters is proposed. The approach relies on an experimental measure of the surface and interior or "bulk" cluster atoms provided by the x-ray photoelectron spectroscopy and on a model for the attenuation of photoelectrons ejected from the bulk of the cluster as the result of the ionizing irradiation. The experimental part gives the ratio of the electron signal from the bulk cluster atoms to that from the cluster surface atoms for a wide range of cluster sizes and electron kinetic energies. The attenuated response of the bulk atoms is modeled using an exponential law with the cluster size and kinetic-energy-dependent electron escape depth as parameters. For the experimental size range, model-based calculations for Ar, Kr, and Xe clusters are presented. The cluster size estimates obtained from comparison of the model calculations and experimental results agree well with those determined from the parameters of the cluster creation process. The combination of experiment and modeling also makes it possible to estimate the effective escape depth for electron propagation in free clusters. For Ar, Kr, and Xe clusters of varying mean size, absolute determination of the surface and bulk electron binding energies of the core levels used in the experiments has also been made.

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Section: A From Model To Experimentsmentioning

confidence: 52%

The size of neutral free clusters as manifested in the relative bulk-to-surface intensity in core level photoelectron spectroscopy

Tchaplyguine

Marinho

Gisselbrecht

et al. 2004

The Journal of Chemical Physics

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“…The smaller values near threshold, which are closer to the statistically expected 2/3 ratio, might be 'accidental' in view of the fact that the partial ionization cross section depends on the shape resonance near threshold [4,28]. The results by…”

Section: Ground State Atoms 4d Photoelectron Spectrummentioning

confidence: 91%

Photoionization of laser-excited caesium atoms above the 4d ionization threshold

Moise¹,

Alagia²,

Avaldi³

et al. 2010

J. Phys. B: At. Mol. Opt. Phys.

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Abstract:The photoionization of ground state and 6p laser-excited Cesium atoms was studied above their 4d ionization threshold. The 4d photoelectron spectrum of 6p laser-excited atoms shows a stronger excitation of satellites upon ionization than its ground state counterpart. The relative intensities of satellite and main photolines show a slow variation with the incoming photon energy for both the ground state and the 6p laser-excited states. An assignment of the excited state spectra, supported by recently published ground state photoionization spectra and calculations, is given and a preliminary analysis of the 4d Auger spectrum of laser-excited atoms is also presented.

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“…A fair bit of experimental data exists for Xe 4d photoionization. The cross section [22,23], spin-orbit branching ratio [24,25], and angular-distribution parameter [23,26 -28] have been measured from threshold (67.5 eV) to 280 eV photon energy, and dipole transition matrix elements have been determined using electron-spin [29,30] and coincidence [31,32] measurements at a few energies. Two characteristic features of the 4d cross section appear in the energy range of these studies: the broad maximum (22 Mb) of the shape resonance at approximately 100 eV at the Cooper minimum near 185 eV.…”

mentioning

confidence: 99%

Dynamical Relativistic Effects in Photoionization: Spin-Orbit-Resolved Angular Distributions of Xenon4dPhotoelectrons near the Cooper Minimum

et al. 2001

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Two decades ago, it was predicted [Y. S. Kim et al., Phys. Rev. Lett. 46, 1326 (1981)] that relativistic effects should alter the dynamics of the photoionization process in the vicinity of Cooper minima. The present experimental and theoretical study of the angular distributions of Xe 4d(3/2) and 4d(5/2) photoelectrons demonstrates this effect for the first time. The results clearly imply that relativistic effects are likely to be important for intermediate- Z atoms at most energies.

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High-resolution study of the Xe 4d5/2:4d3/2

Cited by 46 publications

References 28 publications

The size of neutral free clusters as manifested in the relative bulk-to-surface intensity in core level photoelectron spectroscopy

The size of neutral free clusters as manifested in the relative bulk-to-surface intensity in core level photoelectron spectroscopy

Photoionization of laser-excited caesium atoms above the 4d ionization threshold

Dynamical Relativistic Effects in Photoionization: Spin-Orbit-Resolved Angular Distributions of Xenon4dPhotoelectrons near the Cooper Minimum

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