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Structure and stress of Re(11%21); chiral terraces at a racemic surface

Etman, H.A., Held, G., Jenkins, S.J. and Bennett, R. A. (2013) Structure and stress of Re(11%21); chiral terraces at a racemic surface. Physical Chemistry Chemical Physics, 15 (48). pp. 20823-20829. ISSN 1463-9076

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To link to this item DOI: 10.1039/c3cp53165a

Abstract/Summary

The surface structure and morphology of the clean Re(11%21) surface has been investigated through combined low energy electron diffraction intensity analysis of data taken at multiple angles of incidence, scanning tunneling microscopy, and first-principles density functional calculations. The results show how this globally racemic surface terminates in two chirally distinct terraces, which show largescale out-of-plane atomic relaxations and in-plane lateral movement of the uppermost atoms. We further identify and discuss the initial stages of step bunching upon adsorption of oxygen that leads ultimately to the large-scale faceting of the surface. Finally, we present calculations of surface stress and the response to applied surface strain, which suggest routes to the exertion of control over the expression of chirality at the surface.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:35330
Publisher:Royal Society of Chemistry

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