Tuning the conductivity along atomic chains by selective chemisorption

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Edler, F.; Miccoli, I.; Stöckmann, J.P.; Pfnür, H.; Braun, C. et al.: Tuning the conductivity along atomic chains by selective chemisorption. In: Physical Review B 95 (2017), Nr. 12, No. 125409. DOI: https://doi.org/10.1103/PhysRevB.95.125409

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Sum total of downloads: 96




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Abstract: 
Adsorption of Au on vicinal Si(111) surfaces results in growth of long-range ordered metallic quantum wires. In this paper, we utilized site-specific and selective adsorption of oxygen to modify chemically the transport via different channels in the systems Si(553)-Au and Si(557)-Au. They were analyzed by electron diffraction and four-tip STM-based transport experiments. Modeling of the adsorption process by density functional theory shows that the adatoms and rest atoms on Si(557)-Au provide energetically favored adsorption sites, which predominantly alter the transport along the wire direction. Since this structural motif is missing on Si(553)-Au, the transport channels remain almost unaffected by oxidation. © 2017 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.
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2017
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
total perc.
1 image of flag of Germany Germany 47 48.96%
2 image of flag of United States United States 19 19.79%
3 image of flag of China China 8 8.33%
4 image of flag of Korea, Republic of Korea, Republic of 3 3.12%
5 image of flag of Israel Israel 3 3.12%
6 image of flag of Ireland Ireland 3 3.12%
7 image of flag of Italy Italy 2 2.08%
8 image of flag of Iran, Islamic Republic of Iran, Islamic Republic of 1 1.04%
9 image of flag of United Kingdom United Kingdom 1 1.04%
10 image of flag of Australia Australia 1 1.04%
    other countries 8 8.33%

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