Structure and oscillatory multilayer relaxation of the bismuth (100) surface

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Authors

J. Sun, University of New HampshireFollow
J. Wang, University of New HampshireFollow
J. Wells, Institute for Storage Ring Facilities and Interdisciplinary Nanoscience CenterFollow
Y. M. Koroteev, Donostia International Physics CenterFollow
G. Bihlmayer, Institut für Festkörperforschung and Institute for Advanced SimulationFollow
E. V. Chulkov, Facultad de Ciencias QuímicasFollow
Ph Hofmann, Institute for Storage Ring Facilities and Interdisciplinary Nanoscience CenterFollow
Karsten Pohl, University of New HampshireFollow

Abstract

We present a combined experimental and theoretical study of the surface structure of single crystal Bi(100) via scanning tunneling microscopy (STM), low-energy electron diffraction intensity versus energy (LEED-IV) analysis and density functional theory (DFT). We find that the surface is unreconstructed and shows an unusually large oscillatory multilayer relaxation down to the sixth layer. This unexpected behavior will be explained by a novel mechanism related to the deeply penetrating electronic surface states. STM reveals wide (100) terraces, which are separated by two-layer high steps in which the shorter of the two interlayer spacings is terminating this surface, consistent with the LEED structural analysis and DFT.

Department

Physics

Publication Date

6-11-2010

Journal Title

New Journal of Physics

Publisher

Institute of Physics

Digital Object Identifier (DOI)

10.1088/1367-2630/12/6/063016

Document Type

Article

Recommended Citation

J Sun et al 2010 New J. Phys. 12 063016 doi:10.1088/1367-2630/12/6/063016

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