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End States in One-Dimensional Chains

Published

Author(s)

Jason Crain, Daniel T. Pierce

Abstract

End states-the zero-dimensional analogs of the two-dimensional states that occur at a crystal surface-were observed at the ends of one-dimensional atom chains that were self-assembled by depositing gold on the vicinal Si(553) surface. Scanning tunneling spectroscopy measurements of the differential conductance along the chains revealed quantized states in isolated segments with differentiated states forming over end atoms. A comparison to a tight-binding model demonstrated how the formation of electronic end states transforms the density of states and the energy levels within the chains.
Citation
Science
Volume
307
Issue
5710

Keywords

end-states, one-dimensional chains, scanning tunneling spectroscopy, vicinal silicon surfaces

Citation

Crain, J. and Pierce, D. (2005), End States in One-Dimensional Chains, Science (Accessed June 21, 2024)

Issues

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Created February 4, 2005, Updated February 19, 2017