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Diffuse Scattering and the Fundamental Properties of Materials by Rozaliya Barabash

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5

ORDERED AND IDISORDERED SURFACE PHASES OF BI ON CU(111)

Elias Vlieg1

Daniel Kaminski1

Raoul van Gastel2

Bene Poelsema2

1. IMM Solid State Chemistry, Radboud University Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands

2. University of Twente, Solid State Physics, MESA+ Institute for Nanotechnology, PO Box 217, 7500 AE Enschede, The Netherlands

Abstract

Using a combination of surface X-ray diffraction and low-energy electron microscopy, we have determined the structure of several ordered and disordered phases of Bi on Cu(111) and the transitions between these structures. At low coverage, a surface alloy is formed that is initially disordered but that orders into √3 domains up to a coverage of 1/3 ML. For increasing coverage, de-alloying ...

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