Title

Germanium Adsorption On Ag(111): An Aes-Leed And Stm Study

Keywords

AES; Auger; Ge nanostructures; LEED; Self-organization; Silver; STM

Abstract

The adsorption of germanium on Ag(111) has been investigated using Scanning Tunneling Microscopy, Auger Electron Spectroscopy and Low Energy Electron Diffraction. From the shape of the Auger peak-to-peak versus time curves, we deduce that at room temperature the growth mode is nearly layer-by-layer at least for the first two layers. In the sub-monolayer range, the growth starts by the formation of a (√ 3× √3)R30° surface superstructure which is complete at 1/3 monolayer coverage. Beyond this coverage a rectangular c(√3 × 7) superstructure is observed. STM images reveal that this last reconstruction is formed by an ordered arrangement of self-assembled Ge tetramers giving rise to a surprising undulation of the surface. Copyright © 2007 American Scientific Publishers All rights reserved.

Publication Date

9-1-2007

Publication Title

Journal of Nanoscience and Nanotechnology

Volume

7

Issue

9

Number of Pages

3189-3192

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1166/jnn.2007.677

Socpus ID

38449114881 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/38449114881

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