physica status solidi (b)
© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Editor: Stefan Hildebrandt (Editor-in-Chief), Sabine Bahrs (Deputy Editor)
Online ISSN: 1521-3951
Front Cover: Optical characterization of gold chains and steps on the vicinal Si(557) surface: Theory and experiment (Phys. Status Solidi B 6/2012)
Stepped surfaces of silicon act as a natural template for engineering one-dimensional nanostructure arrays through self-organization of metal adsorbates. In a joint experimental-theoretical study (see Editor's Choice article on pp. 1095–1104), Conor Hogan, Niall McAlinden and John McGilp investigated the optical and electronic properties of clean and gold-covered Si(557), a vicinal Si(111) surface that features densely packed, single atomic gold chains parallel to the step edge. Using reflectance anisotropy spectroscopy and density functional theory simulations, the authors identified optical “fingerprints” deriving from specific structural motifs such as gold chains, silicon honeycomb structures, and terrace adatoms. The work will drive a deeper understanding of more complicated double and triple chain reconstructions of nominal and vicinal Si(111):Au.