Coupled Pb chains on Si(557): Origin of one-dimensional conductance

Tegenkamp, Christoph; Ohta, T.; McChesney, J.L.; Dil, H.; Rotenberg, E.; Pfnür, Herbert; Horn, K.

Original version

Tegenkamp, C.; Ohta, T.; McChesney, J.L.; Dil, H.; Rotenberg, E. et al.: Coupled Pb chains on Si(557): Origin of one-dimensional conductance. In: Physical Review Letters 100 (2008), Nr. 7, No. 76802. DOI: https://doi.org/10.1103/PhysRevLett.100.076802

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To cite the version in the repository, please use this identifier: https://doi.org/10.15488/1883

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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. © 2008 The American Physical Society.
License of this version:	Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden.
Publication type:	Article
Publishing status:	publishedVersion
Publication date:	2008
Keywords english:	Crystal structure, Electric conductance, Lead, Low temperature effects, Photoemission, Valence bands, Angle-resolved photoemission, Characteristic chain structure, Semiconducting silicon
DDC:	530 \| Physik