Tegenkamp, C; Ohta, T; Mc Chesney, J L; Dil, H; Rotenberg, E; Pfnür, H; Horn, K (2008). Coupled Pb chains on Si(557): Origin of one-dimensional conductance. Physical Review Letters, 100(7):076802.
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.
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.
| Item Type: | Journal Article, refereed, original work |
|---|---|
| Communities & Collections: | 07 Faculty of Science > Physics Institute |
| Dewey Decimal Classification: | 530 Physics |
| Scopus Subject Areas: | Physical Sciences > General Physics and Astronomy |
| Language: | English |
| Date: | 2008 |
| Deposited On: | 10 Feb 2009 15:20 |
| Last Modified: | 25 Jun 2022 09:35 |
| Publisher: | American Physical Society |
| ISSN: | 0031-9007 |
| OA Status: | Green |
| Publisher DOI: | https://doi.org/10.1103/PhysRevLett.100.076802 |
Tegenkamp, C