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Core-level spectroscopy of the clean Si(001) surface: Charge transfer within asymmetric dimers of the 2 x 1 and c(4 x 2) reconstructions.

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TLDR
Extremely well-resolved Si 2p core-level spectra have been obtained and the split of ∼0.55 eV between the two dimer-atom components points to a substantial charge transfer within the dimers.
Abstract
Extremely well-resolved Si 2p core-level spectra have been obtained from the clean Si(001) surface. Spectra from the cold c(4×2) and the RT 2×1 surfaces are very similar, implying that the local structure of the two reconstructions is the same. Shifted components originating from both up and down atoms of asymmetric dimers, as well as second-layer atoms, are identified. The split of ∼0.55 eV between the two dimer-atom components points to a substantial charge transfer within the dimers. We find no support for the recently proposed crystal-field splitting of the surface components

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Auger parameter and Wagner plot in the characterization of chemical states by X-ray photoelectron spectroscopy: a review

TL;DR: In this article, a review of the Auger parameter concept and its relation to the final state relaxation energy is presented, and a simple semiquantitative model useful to rationalize the dependence of the local electronic structure on the atomic environment is presented.
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Band Alignment and Minigaps in Monolayer MoS2-Graphene van der Waals Heterostructures

TL;DR: It is shown that, close to the Fermi level, graphene exhibits a robust, almost perfect, gapless, and n-doped Dirac cone and no significant charge transfer doping is detected from MoS2 to graphene, however, modification of the graphene band structure occurs at rather larger binding energies, as the opening of several miniband-gaps is observed.
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Semiconductor Surface Reconstruction: The Structural Chemistry of Two-Dimensional Surface Compounds.

TL;DR: The purpose of this article is to provide an overview of the surface structures of the clean surfaces of tetrahedrally coordinated semiconductors within the context of identifying the main features of their structural chemistry.
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Ab initio molecular dynamics: Concepts, recent developments, and future trends

TL;DR: The purpose of this work is to give a brief introduction to the technique and to review several important recent developments in the field.
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Physical properties and chemical reactivity of the buckled dimer on Si(1 0 0)

TL;DR: In this paper, the chemical reactivity of the buckled dimer on Si(1.0.0) is reviewed from the viewpoint of physical properties of the substrate and the molecules, which have been obtained by several experimental techniques including valence and core-level photoelectron spectroscopy, high-resolution electron energy loss spectrum, scanning tunneling microscopy as well as theoretical calculations.
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