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LEED intensity measurements and surface structures: The dynamical approach (Illustrated by Ni/chemisorbed Na system)
S Andersson,John B. Pendry +1 more
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In this paper, a system of sodium on a nickel (100) surface is described; resolution is investigated and found to be about +or-0.1 AA, while the top layer of a clean nickel surface is shown to be dilated by not more than 0.15 AA and the determination of the sodium nickel distance of 2.9 AA reported earlier by Andersson and Pendry is described in greater detail.Abstract:
The authors are concerned with extraction of structural information from LEED intensity measurements by comparison with dynamical calculations for trial structures. The technique is illustrated by the system of sodium on a nickel (100) surface. Experiments are described; resolution is investigated and found to be about +or-0.1 AA. The top layer of a clean nickel (100) surface is shown to be dilated by not more than 0.15 AA and the determination of the sodium nickel distance of 2.9 AA reported earlier by Andersson and Pendry is described in greater detail.read more
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Attenuation lengths of low-energy electrons in solids
TL;DR: In this article, a compilation of measured attenuation lengths of low-energy electrons in solids in the energy range (40 to 2000 eV) normally employed in X-ray photoelectron and Auger-electron spectroscopy is presented.
Journal ArticleDOI
Structural studies of alkali metal adsorption and coadsorption on metal surfaces
Renee D. Diehl,Ronan McGrath +1 more
TL;DR: A review of recent studies of adsorption and coadsorption using specifically structural techniques can be found in this paper, with the intention of highlighting recent developments, providing a useful reference base to the community, and drawing attention to some unifying concepts.
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Theory of lattice contraction at aluminium surfaces
Michael W. Finnis,Volker Heine +1 more
TL;DR: In this paper, the elementary concepts which govern the bulk total energy and crystal structure of sp bonded metals are also relevant at the surface, and a simple model explains the observed contraction in the interlayer spacing of the (110) surface layer of aluminium compared with the (100) and (111) surfaces.
Journal ArticleDOI
Electron structure of Na and K adsorbed on Ni (100)
Stefan Andersson,U. Jostell +1 more
TL;DR: In this article, electron energy loss spectroscopy was used to explore the adatom valence electron structure and charging and the observed shifts of the Na2p and K3p core level excitation thresholds are consistent with these charge assignments.
Journal ArticleDOI
A tabulation and classification of the structures of clean solid surfaces and of adsorbed atomic and molecular monolayers as determined from low energy electron diffraction patterns
TL;DR: In this paper, a tabulation of the ordering characteristics of clean and adsorbate-covered single crystal surfaces based on diffraction patterns observed with LEED (Low Energy Electron Diffraction) is presented.
References
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Journal ArticleDOI
A Simplification of the Hartree-Fock Method
TL;DR: In this article, the Hartree-Fock equations can be regarded as ordinary Schrodinger equations for the motion of electrons, each electron moving in a slightly different potential field, which is computed by electrostatics from all the charges of the system, positive and negative, corrected by the removal of an exchange charge, equal in magnitude to one electron, surrounding the electron whose motion is being investigated.
Journal ArticleDOI
Theory of Metal Surfaces: Work Function
TL;DR: In this article, the authors presented a contribution to the theory of metal surfaces with emphasis on the shape of the electron density distribution and the surface energy, and extended this analysis to a consideration of the work function.
Journal ArticleDOI
Auger electron spectroscopy
TL;DR: Auger Electron Spectroscopy has recently emerged as one of the most sensitive methods of surface analysis and is becoming widely accepted due to the relative simplicity of the LEED-Auger and cylindrical mirror analyzers as mentioned in this paper.
Journal ArticleDOI
Energy Bands for the Iron Transition Series
TL;DR: In this article, preliminary energy-band calculations for elements of the iron transition series have been completed using the augmented plane-wave method, and the results indicate the presence of systematic trends in the band structures for the various elements and provide some justification for the application of the rigid band model to transition metals and their alloys.
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