Dynamics and Post-Collision Interaction Effects in Two Electron Decay from the Xenon<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mn>4</mml:mn><mml:mi mathvariant="italic">d</mml:mi></mml:math>Hole

Lablanquie, P.; Sheinerman, S.; Penent, F.; Hall, Richard; Ahmad, M.; Hikosaka, Y.; Ito, Kenji

doi:10.1103/physrevlett.87.053001

Cited by 40 publications

(31 citation statements)

References 21 publications

(27 reference statements)

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“…The laser photon energy is high enough to photoionize Xe 4d core electrons (thresholds: 69.54 and 67.55 eV for spin-orbit states j =3/2 and 5/2, respectively 24 ). The cross section at 90 eV is as large as 22 Mb due to a giant resonance, while for outer shell it is only 1.5 Mb.…”

Section: A Generation Of Electrons By a Bright X-ray Sourcementioning

confidence: 99%

Morphology of a columnar stack of coronene molecules encapsulated in a single-walled carbon nanotube

2015

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The morphology of stacked coronene molecules encapsulated in a single-walled carbon nanotube (SWCNT) is investigated using atomistic simulation. First, the minimum energy configuration of coronene molecules in a SWCNT is sought by means of conjugate gradient (CG) minimization. Secondly, encapsulation of coronene molecules into a SWCNT existing in a coronene atmosphere is simulated by means of molecular dynamics (MD). In both of the simulations, the diameter of the SWCNT ranges from 1.35 to 1.69 nm, and the final configurations of coronene molecules within a SWCNT are examined. In a thin SWCNT, coronene molecules tilt against the radial direction of the SWCNT and slide relative to each other, whereas in a thick SWCNT, they do not tilt but rotate relative to each other. In a SWCNT of the intermediate diameter, they tilt, slide, and rotate. For the SWCNT diameter less than or equal to 1.52 nm, the mean tilt angle of the stacked coronene molecules almost linearly decreases with increasing the diameter, whereas for the diameter above 1.52 nm, it is approximately 0∘. To check the validity of the results, the MD simulations are performed changing the density of the coronene atmosphere and the length of the SWCNT; the results prove to be valid. Finally, the effects of temperature on the mean tilt angle and mean intermolecular distance of stacked coronene molecules are examined by a rather simplified simulation, which shows that both of them increase with increasing temperature.

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Section: A Generation Of Electrons By a Bright X-ray Sourcementioning

confidence: 99%

Morphology of a columnar stack of coronene molecules encapsulated in a single-walled carbon nanotube

2015

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“…In the case of inner-shell photoionization followed by DA decay, PCI implies the interaction of the emitted photoelectron with the two subsequent Auger electrons and with the field of the ion, which varies during the Auger decay. Previously, PCI effects in DA processes have been investigated experimentally by means of threshold photoelectron yields measured in the vicinity of inner-shell vacancies: Kr 1s −1 , Kr 2p −1 , Kr 3p −1 , Ar 1s −1 , Ar 2p −1 , Xe 4p −1 , and Xe 4d −1 [9][10][11][12][13][14][15][16][17][18]. Also an investigation of PCI-distorted photoelectron lines associated with DA decay and measured in coincidence with the two ejected Auger electrons has been carried out more recently for the case of Ar 2p photoionization [19].…”

Section: Introductionmentioning

confidence: 99%

Influence of double Auger decay on low-energy 3dphotoelectrons of krypton

et al. 2012

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Influence of double Auger decay on low-energy 3d photoelectrons of krypton.Physical Review A. Atomic, Molecular, and Optical Physics, 86(2) Effects of postcollision interaction (PCI) observable in low-energy 3d photoelectron spectra of Kr, which are associated with double Auger decay of the created inner-shell vacancy, are investigated by a combined experimental and theoretical approach. Measurements are based on an efficient multielectron coincidence method. Calculations have been carried out in the framework of a semiclassical approach. Our investigation reveals strong PCI distortion of the photoelectron line shapes, which depends on the kinematics of the process and the characteristics of the double Auger decay.

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“…In order to overcome the difficulty of discriminating this continuum from other sources, particularly from background electrons, coincidence studies are required. Ion-electron coincidence measurements initiated by Krause et al [5] were performed in several laboratories [6 -8] as a necessary step in order to corroborate the findings of Carlson and Krause and to further investigate the role of the double Auger decay in Auger cascades [9]. Only measurements detecting the two electrons in coincidence could identify whether the direct double Auger process is indeed the dominant decay mechanism leading to triply ionized final states.…”

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Energy and Angular Distributions of Electrons Emitted by Direct Double Auger Decay

et al. 2004

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We have observed the direct L 2;3 MMM double Auger transition after photoionization of the 2p shell of argon by angle-resolved electron-electron coincidence spectroscopy. The process is responsible for about 20% of the observed Auger electron intensity. In contrast to the normal Auger lines, the spectra in double Auger decay show a continuous intensity distribution. The energy and angular distributions of the emitted electrons allow one to obtain information on the electron correlations giving rise to the double Auger process as well as the symmetry of the associated two-electron continuum state.

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Dynamics and Post-Collision Interaction Effects in Two Electron Decay from the Xenon4dHole

Cited by 40 publications

References 21 publications

Morphology of a columnar stack of coronene molecules encapsulated in a single-walled carbon nanotube

Morphology of a columnar stack of coronene molecules encapsulated in a single-walled carbon nanotube

Influence of double Auger decay on low-energy 3dphotoelectrons of krypton

Energy and Angular Distributions of Electrons Emitted by Direct Double Auger Decay

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