Decay channels of the discrete and continuum Xe<i>4d</i>resonances

Becker, U.; Prescher, T.; Schmidt, E.; Sonntag, B.; Wetzel, H.

doi:10.1103/physreva.33.3891

Cited by 111 publications

(42 citation statements)

References 35 publications

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“…Similar spectra were obtained over the photon energy range 80-130 eV. At somewhat lower photon energies the binding-energy spectra are complicated by resonance Auger effects (57,58). The spectra are considerably better resolved than earlier published work using PES at similar photon energies (1 6, 17) or XPS (5,6) with the peaks a, b, c, d, e, f, g, h, and i not having been resolved previously.…”

Section: Introductionsupporting

confidence: 54%

Investigation of electron correlation effects in the inner-valence photoelectron spectra of argon and xenon using synchrotron radiation at high resolution

Brion¹,

Bawagan²,

Tan³

1988

Can. J. Chem.

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High-resolution, magic angle photoelectron spectra have been obtained for the Ar 3 s and Xe 5s inner-valence regions using photon energies in the range 60-170 eV. Measurements were made using monochromatized synchrotron radiation from the Canadian Synchrotron Radiation Facility at the new 1-GeV storage ring at the University of Wisconsin. The binding energy spectra show detailed and complex structures due to electron correlation (many-body) effects. Relative satellite intensities are compared with the results of recent configuration-interaction calculations. Additional binding energy spectra obtained at much higher resolution (0.16 eV fwhm) than any previous published work show extremely detailed satellite structure consistent with information from recent high resolution fluorescence studies for argon. The newly revealed satellite structure provides further insight into existing differences between calculated and measured satellite intensities. In the case of the Ar 3s spectrum, very close agreement is predicted between the measured intensities and those calculated by CI methods when the previously unresolved satellite structure is taken into account. These new spectral observations also provide information and perspective relevant to recent controversies in the literature concerning intensities and mechanisms in photoelectron and electron momentum spectroscopies. obtenus i une rCsolution beaucoup plus grande (0,16 eV fwhm) que celles utilisees anterieurement, presentent une structure satellite extrgmement detaillee qui est en accord avec l'information obtenue a partir d'etudes recentes de fluorescence a haute resolution effectukes sur l'argon. La nouvelle structure satellite observee fournit une connaissance plus profonde sur les differences qui existent entre les intensites satellites calcultes et mesurkes. Dans le cas du spectre du Ar 3s, alors qu'on prend en consideration la structure satellite qui n'avait pas etk rksolue anterieurement, on observe une excellente correlation entre les intensites mesurees et celles calcul&es par les mkthodes des IC. Ces nouvelles observations spectrales fournissent aussi de l'information et une perspective qui presentent de l'intCr2t en relation avec les rkcentes controverses qui ont surgies dans la litterature concernant les intensites et les mecanismes des spectroscopies phototlectronique et du moment Clectronique.[Traduit par la revue] Introduction Photoelectron spectroscopy (PES) using vacuum ultraviolet radiation has provided detailed insight into valence-shell photoionization processes and the electronic structure of free atoms and molecules. Early He1 PES studies of the outer-valence np photoionization of the noble gases by Al-Joboury and Turner (1, 2), and also the elegant photoelectron studies of Ar, K r , and Xe by Frost, McDowell, and Vroom (3), using a spherical grid retarding spectrometer were seminal in the rise and development of ultraviolet PES. Today PES is a precise tool not only for the study of fundamental processes in photoionization, but also for the inv...

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Section: Introductionsupporting

confidence: 54%

Investigation of electron correlation effects in the inner-valence photoelectron spectra of argon and xenon using synchrotron radiation at high resolution

Brion¹,

Bawagan²,

Tan³

1988

Can. J. Chem.

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“…The situation is even worse for the calculations of the α µ parameters (5), where all possible satellites have to be taken into account, including the Auger decay amplitudes V µ of the Xe 4d −1 5/2 6p (J = 1) state to the corresponding excited states of the Xe + ion. In order to qualitatively understand the opposite signs of the shift in table 1, we consider, in accordance with equations (9) and (11), the ratio of the C 1 parameters for the ionic states 6 and 19 (for q 1 and ρ 2 1 the second term in equation (11) can be neglected [27,39])…”

Section: Discussion and Concluding Remarksmentioning

confidence: 99%

Universal scaling of resonances in vector correlation photoionization parameters

Grum-Grzhimailo¹,

Fritzsche²,

O’Keeffe³

et al. 2005

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

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In the present work it is shown that in atomic photoionization the Fanolike behaviour of vector correlation parameters in the region of an isolated autoionizing resonance possesses two universal values: the width and the energy shift with respect to the energy of the autoionizing state. This property is confirmed by fluorescence polarimetry studies, which provide, in the particular case of Xe 4d −1 5/2 6p (J = 1) photoexcitation, the experimental determination of the alignment and the orientation of the final photoion across the resonance.

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“…Kr 3d 5p ~ Kr 4p 6p (Schmidt et al 1981, Aksela et al 1986a, b, Lindle et al 1986. Sec~ndly, on the Xe 4d ~ np resonances, Becker et al (1986) qualitatively observed a large continuous background caused by shake-off processes, e.g. Xe…”

mentioning

confidence: 92%