Self-consistent LDA calculation in ion neutralization at metal surfaces

Lorente, Nicolás; Monreal, R.

doi:10.1016/s0039-6028(96)00964-8

Cited by 78 publications

(54 citation statements)

References 25 publications

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“…(2), molecular dynamics simulations of trajectories and polar angular distributions of scattered particles were performed with Γ 0 and d as adjustable parameters. In this way, the Auger neutralization rate Γ(z) for He + on Al was retrieved from the experiments in [59] and compared to the most sophisticated calculations existing to that date [60] with identical conclusion as by Hagstrum: theory gave too small values of the AN rates to account for the experiments.…”

Section: Vc Vmentioning

confidence: 99%

“…Inspired by the formulation in [1] for the bulk problem, a general theory for multielectron Auger neutralization of ions at metal surfaces, based on a dielectric formalism, was developed by Monreal and Lorente [60,106,107]. The basic formula for the Auger transition rate of Eq.…”

Section: General Formalismmentioning

confidence: 99%

“…(15) and the jellium model have been performed in Refs. [60,106,107]. These metals are prototypes of free-electron-like metals and thus well described by a jellium.…”

Section: Jellium Modelmentioning

confidence: 99%

“…In subsequent works [60,107], the Lang-Kohn jellium surface was considered and χ was calculated using TDLDA. One should note that in this description of the interacting electrons other collective modes appear in addition to the surface plasmons which are called multipole surface plasmons.…”

Section: Jellium Modelmentioning

confidence: 99%

“…Much of the work presented here would have been not possible without the benefit of discussions with many colleagues and the frequent disagreement Reprinted with permission from [60]. c (1997) by Elsevier.…”

Section: Acknowledgmentsmentioning

confidence: 99%

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Auger neutralization and ionization processes for charge exchange between slow noble gas atoms and solid surfaces

Monreal

2014

Progress in Surface Science

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Electron and energy transfer processes between an atom or molecule and a surface are extremely important for many applications in physics and chemistry. Therefore a profound understanding of these processes is essential in order to analyze a large variety of physical systems. The microscopic description of the two-electron Auger processes, leading to neutralization/ionization of an ion/neutral atom in front of a solid surface, has been a long-standing problem. It can be dated back to the 1950s when H. D. Hagstrum proposed to use the information contained in the spectrum of the electrons emitted during the neutralization of slow noble gas ions as a surface analytical tool complementing photoelectron spectroscopy. However, only recently a comprehensive description of the Auger neutralization mechanism has been achieved by the combined efforts of theoretical and experimental methods. In this article we review the theoretical models for this problem, stressing how their outcome compare with experimental results. We also analyze the inverse problem of Auger ionization. We emphasize the understanding of the key quantities governing the processes and outline the challenges remaining. This opens new perspectives for future developments of theoretical and experimental work in this field.

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Section: Vc Vmentioning

confidence: 99%

Section: General Formalismmentioning

confidence: 99%

“…(15) and the jellium model have been performed in Refs. [60,106,107]. These metals are prototypes of free-electron-like metals and thus well described by a jellium.…”

Section: Jellium Modelmentioning

confidence: 99%

Section: Jellium Modelmentioning

confidence: 99%

Section: Acknowledgmentsmentioning

confidence: 99%

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Auger neutralization and ionization processes for charge exchange between slow noble gas atoms and solid surfaces

Monreal

2014

Progress in Surface Science

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Auger neutralization of He ions on Ag surfaces: surface type and azimuthal orientation dependence

Bandurin

Esaulov

Guillemot

et al. 2004

Physica Status Solidi (b)

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PACS 68.49. Sf, 71.15.Pd Neutralization of He + ions in grazing incidence scattering on Ag(111) and Ag(110) surfaces is studied. These measurements reveal the existence of an order of magnitude difference in the probability of ion survival on Ag(110) and Ag(111). The effect of changing the direction of ion scattering along the surface azimuthal orientation is investigated. The experimental results are discussed in terms of survival from Auger neutralization, whose rates are derived theoretically. Molecular dynamics simulation of scattered ion trajectories are performed and the surviving ion fractions are then calculated using the theoretical Auger neutralization rates, without adjustable parameters. The calculations agree quite well with the experimental data and show that the observed differences in the neutralization probabilities on these surfaces are related to different extensions of the electron density beyond the surface, resulting from different atomic packing.

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Electron Emission from Surfaces Mediated by Ion-Induced Plasmon Excitation

Baragiola¹,

Monreal²

Springer Tracts in Modern Physics

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Self-consistent LDA calculation in ion neutralization at metal surfaces

Cited by 78 publications

References 25 publications

Auger neutralization and ionization processes for charge exchange between slow noble gas atoms and solid surfaces

Auger neutralization and ionization processes for charge exchange between slow noble gas atoms and solid surfaces

Auger neutralization of He ions on Ag surfaces: surface type and azimuthal orientation dependence

Electron Emission from Surfaces Mediated by Ion-Induced Plasmon Excitation

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