Electron photodetachment cross sections of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">Cl</mml:mi></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">Br</mml:mi></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>

Mandl, A.

doi:10.1103/physreva.14.345

Cited by 63 publications

(11 citation statements)

References 16 publications

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“…with threshold energy t = 0.228 eV (or t = 0 eV for the respective backwards reaction) when using EA (Br) = 3.313 eV and I P (Cl − ) = 3.601 eV [11]. A reaction with several neighbors (N = 1, 6) that we studied was [1]:…”

Section: Dr2013mentioning

confidence: 99%

Interatomic Coulombic electron capture in atomic, molecular, and quantum dot systems

Bande

Pont

Gokhberg

et al. 2015

EPJ Web of Conferences

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Abstract. The interatomic Coulombic electron capture (ICEC) process has recently been predicted theoretically for clusters of atoms and molecules. For an atom A capturing an electron e( ) it competes with the well known photorecombination, because in an environment of neutral or anionic neighboring atoms B, A can transfer its excess energy in the ultrafast ICEC process to B which is then ionized. The cross section for e( ) + A + B → A − + B + + e( ) has been obtained in an asymptotic approximation based on scattering theory for several clusters [1,2]. It was found that ICEC starts dominating the PR for distances among participating species of nanometers and lower. Therefore, we believe that the ICEC process might be of importance in the atmosphere, in biological systems, plasmas, or in nanostructured materials. As an example for the latter, ICEC has been investigated by means of electron dynamics in a model potential for semiconductor double quantum dots (QDs) [3]. In the simplest case one QD captures an electron while the outgoing electron is emitted from the other. The reaction probability for this process was found to be relatively large.

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Section: Dr2013mentioning

confidence: 99%

Interatomic Coulombic electron capture in atomic, molecular, and quantum dot systems

Bande

Pont

Gokhberg

et al. 2015

EPJ Web of Conferences

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“…Let us start with the Br atom and Cl − as its neighbour. Since EA Br = 3.313 eV and IP Cl − = 3.601 eV [9], the ICEC threshold lies at ε = 0.288 eV. Below this energy only PR is possible, whereby the electron is captured by Br to form Br − and a photon of energy ε + EA Br is emitted.…”

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confidence: 99%

Environment assisted electron capture

Gokhberg

Cederbaum

2009

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

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Electron capture by isolated atoms and ions proceeds by photorecombination. In this process, a species captures a free electron by emitting a photon which carries away the excess energy. It is shown here that in the presence of an environment a competing non-radiative electron capture process can take place due to long range electron correlation. In this interatomic (intermolecular) process the excess energy is transferred to neighbouring species. The asymptotic expression for the cross section of this process is derived. We demonstrate by explicit examples that under realizable conditions, the cross section of this interatomic process can clearly dominate that of photorecombination.

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“…The photodetachment cross section of Cl -has been measured by Mandl (1976) at wavelengths between 200 nm and k EA , and this cross section was calculated by Sørensen and Veseth (1995) in the photon energy range from EA to about 81.6 eV in different approximations. The cross sections presented by Sørensen and Veseth (1995) are less than those measured by Mandl (1976) at 200 nm wavelength. The best agreement between the measured and modeled cross sections at 200 nm wavelength is found to be for type II V N-1 -potential approximation.…”

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confidence: 99%