Electron-ion coincidence spectroscopy on atomic barium in the excitation range of the 4<i>d</i>giant resonance

Baier, S.; Gottschalk, G.; Kerkau, T; Luhmann, Till; Martins, M.; Richter, M.; Snell, G.; Zimmermann, Peter

doi:10.1103/physrevlett.72.2847

Cited by 13 publications

(13 citation statements)

References 12 publications

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“…Double-Auger decay contributes to about 10% of the total Auger intensity in the rare gases [47] and is assumed to contribute as much as 60% of all Auger processes following 4d shell ionization of atomic barium [48]. Our estimate of the double-Auger probability (34»%) in C6o is the average of all spectra above 310 eV but coincides basically with the spectrum taken at Am=318 eV with the best signal-to-noise ratio.…”

Section: Methodsmentioning

confidence: 96%

Angle-resolved photoelectron spectroscopy ofC60

et al. 1995

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Angle-resolved photoelectron spectra of gaseous C60 were recorded in the photon energy regions from 21 to 108 eV and from 295 to 320 eV. Partial cross sections o and the angular distribution anisotropy parameter P vary significantly with photon energy, particularly in the near-threshold region of the valence and the core ionization regimes. Some of these effects may be attributed to scattering of the outgoing photoelectron by the atoms of the ionized C60 molecule. Our results indicate that the observed satellites of the C(1s) main line are most likely of shake-up character. Low-energy electrons emitted below the shake-off threshold indicate the occurrence of K-shell vacancy filling double Auger decay. PACS number(s): 36.40.Mr, 33.80. -b, 33.60. -q

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Section: Methodsmentioning

confidence: 96%

Angle-resolved photoelectron spectroscopy ofC60

et al. 1995

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“…The simultaneous inclusion of both 6p 2 and 4f 2 failed. The peaks have been convolved with 300 meV Voigt function for comparison with existing electron spectra [1,7,8,11]. Much narrower peaks, however, are expected in measurements with modern high-resolution experimental setup.…”

Section: D Auger Electron Spectrummentioning

confidence: 99%

“…Recent synchrotron-radiation excited studies of atomic barium [1][2][3][4][5][6][7] demonstrate that there are still open questions regarding the excitation and de-excitation processes in alkaline earth atoms. In this paper our aim is to investigate these processes in more detail by performing a large number of ab initio calculations and by comparing the results with existing experimental findings.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, only the 4d −1 → 6s −2 transitions were studied in detail. Another calculation for 4d AES was presented by Baier et al [7] who used the Hartree-Fock method with relativistic corrections (HFR), but the basis set was limited to include the (6s 2 , 5d 2 ) configurations for the initial state and (6s 2 , 6s 1 5d 1 , 5d 2 ) configurations for the the final ionic states.…”

Section: Introductionmentioning

confidence: 99%

“…Experimentally, the 4d Auger transitions have been studied by using synchrotron radiation, combined with conventional electron spectroscopy [1,7], ion-yield spectroscopy [3] and electron-ion coincidence spectroscopy [7]. The 4d AES have also been recorded using electron beam excitation [8,11].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of electron correlation on the level widths, the photoelecton, Auger electron and ion-yield spectra above the 4d threshold in Ba

Matila

Aksela

2000

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

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Electron correlation has been studied in the singly ionized 5p −1 , 5s −1 and 4d −1 states and the double ionized (5s, 5p, valence) −2 states of Ba by carrying out extensive configuration interaction Hartree-Fock calculations including the mixing of configurations with outermost valence electrons (nl = 6s, 5d, 6p, 4f, . . .). The results of calculations have been compared with existing experimental photoelectron, ion-yield, electron-ion coincidence, and Auger electron spectra.

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Combined electron and ion spectroscopy with synchrotron radiation of free metal atoms and ions

Richter

1995

Journal of Electron Spectroscopy and Related Phenomena

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Electron-ion coincidence spectroscopy on atomic barium in the excitation range of the 4dgiant resonance

Cited by 13 publications

References 12 publications

Angle-resolved photoelectron spectroscopy ofC60

Angle-resolved photoelectron spectroscopy ofC60

Effects of electron correlation on the level widths, the photoelecton, Auger electron and ion-yield spectra above the 4d threshold in Ba

Combined electron and ion spectroscopy with synchrotron radiation of free metal atoms and ions

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