| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Oughaddou, Hamid
Cergy-Pontoise University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2023Dirac Fermions in Blue Phosphorene Monolayercitations
- 2023Dirac Fermions in Blue Phosphorene Monolayercitations
- 2023First steps of silicene growth on an insulating thin-film: effect of the substrate temperature
- 2023First steps of silicene growth on an insulating thin-film: effect of the substrate temperature
- 2023Structural properties of Bi/Au(110)
- 2021Electron beam analysis induces Cl vacancy defects in a NaCl thin filmcitations
- 2020Growth and characterization of nickel oxide ultra-thin filmscitations
- 2020Growth and characterization of nickel oxide ultra-thin filmscitations
- 2020Evidence of new 2D material: Cu<sub>2</sub>Tecitations
- 2020Phosphorus Pentamers: Floating Nanoflowers form a 2D Networkcitations
- 2020Phase transition and thermal stability of epitaxial PtSe 2 nanolayer on Pt(111)citations
- 2020Evidence of new 2D material: Cu 2 Tecitations
- 2019Unoccupied electronic band structure of pentagonal Si nanoribbons on Ag(110)citations
- 2017Reaction kinetics of ultrathin NaCl films on Ag(001) upon electron irradiationcitations
- 2017Reaction kinetics of ultrathin NaCl films on Ag(001) upon electron irradiationcitations
- 2012A review on silicene - New candidate for electronicscitations
- 2010Inter-diffusion of cobalt and silicon through an ultra thin aluminum oxide layercitations
- 2010Inter-diffusion of cobalt and silicon through an ultra thin aluminum oxide layercitations
- 2009Growth of ultrathin film aluminum oxide on Ag(111)citations
Places of action
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article
Reaction kinetics of ultrathin NaCl films on Ag(001) upon electron irradiation
Abstract
We report on an electron-induced modification of alkali halides in the ultrathin film regime. The reaction kinetics and products of the modifications are investigated in the case of NaCl films grown on Ag(001). Their structural and chemical modification upon irradiation with electrons of energy 52–60 eV and 3 keV is studied using low-energy electron diffraction (LEED) and Auger electron spectroscopy (AES), respectively. The irradiation effects on the film geometry and thickness (ranging from between two and five atomic layers) are examined using scanning tunneling microscopy (STM). We observe that Cl depletion follows different reaction kinetics, as compared to previous studies on NaCl thick films and bulk crystals. Na atoms produced from NaCl dissociation diffuse to bare areas of the Ag(001) surface, where they form Na-Ag superstructures that are known for the Na/Ag(001) system. The modification of the film is shown to proceed through two processes, which are interpreted as a fast disordering of the film with removal of NaCl from the island edges and a slow decrease of the structural order in the NaCl with formation of holes due to Cl depletion. The kinetics of the Na-Ag superstructure growth is explained by the limited diffusion on the irradiated surface, due to aggregation of disordered NaCl molecules at the substrate step edges.