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  Coupled Pb Chains on Si(557): Origin of One-Dimensional Conductance

Tegenkamp, T., Ohta, T., McChesney, J. L., Dil, H., Rotenberg, E., Pfnür, H., et al. (2008). Coupled Pb Chains on Si(557): Origin of One-Dimensional Conductance. Physical Review Letters, 100(7), 076802-1-076802-4. doi:10.1103/PhysRevLett.100.076802.

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Tegenkamp, T., Author
Ohta, T.1, Author           
McChesney, J. L., Author
Dil, Hugo1, Author           
Rotenberg, E., Author
Pfnür, H., Author
Horn, Karsten1, Author           
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1Molecular Physics, Fritz Haber Institute, Max Planck Society, ou_634545              

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 Abstract: The Pb/Si(557) system exhibits a strong anisotropy in conductance below 78 K, with the evolution of a characteristic chain structure. Here we show, using angle-resolved photoemission, that chain ordering results in complete Fermi-like nesting in the direction normal to the chains; in addition, the domain structure along the chains forms split-off valence bands with mesoscopic Fermi wavelengths which induce the 1D conductance without further instabilities at low temperatures.

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Language(s): eng - English
 Dates: 2008-02-22
 Publication Status: Issued
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 Rev. Type: Peer
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Title: Physical Review Letters
  Alternative Title : Phys. Rev. Lett.
Source Genre: Journal
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Pages: - Volume / Issue: 100 (7) Sequence Number: - Start / End Page: 076802-1 - 076802-4 Identifier: ISSN: 0031-9007