Au-chains grown on Ge(100): A detailed SPA-LEED study

Autor(en): Lichtenstein, T.
Teiken, H.
Pfnuer, H.
Wollschlaeger, J.
Tegenkamp, C.
Stichwörter: Au wires; Chemistry; Chemistry, Physical; DIFFRACTION; Electron diffraction; GE(001); Ge(100); LEED; MICROSCOPY; Physics; Physics, Condensed Matter; STEPPED SURFACES
Erscheinungsdatum: 2015
Herausgeber: ELSEVIER SCIENCE BV
Journal: SURFACE SCIENCE
Volumen: 632
Startseite: 64
Seitenende: 70
Zusammenfassung: 
Au-induced wire structures grown on Ge(100) were shown to exhibit spectroscopic signatures of strong electronic correlation. However, the atomistic structure of these wires is still controversially discussed. In this study the morphology has been investigated by means of low energy electron diffraction (SPA-LEED). The detailed analysis of diffraction profiles favors strongly to the model of an Au-induced giant missing row (GMR) structure rather than the heterodimer model. Systematic variation of the initial Au-coverage has revealed further that approximately 0.25 ML of the deposited Au coverage penetrates into subsurface positions stabilizing the adsorbate-induced surface structure. (C) 2014 Elsevier B.V. All rights reserved.
ISSN: 00396028
DOI: 10.1016/j.susc.2014.09.002

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