Stabilizing Single Atom Contacts by Molecular Bridge Formation
| Autor: | Bert de Boer, E. H. Huisman, F. L. Bakker, M. L. Trouwborst, Bart J. van Wees, Sense Jan van der Molen |
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| Přispěvatelé: | Zernike Institute for Advanced Materials, Physics of Nanodevices, Surfaces and Thin Films |
| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: |
Physics
MECHANISM Condensed Matter - Mesoscale and Nanoscale Physics Mechanical Engineering SCANNING-TUNNELING-MICROSCOPY FOS: Physical sciences Dithiol Bioengineering BREAK JUNCTION General Chemistry Condensed Matter Physics Bridge (interpersonal) ELECTRICAL CONDUCTANCE TRANSPORT chemistry.chemical_compound chemistry Chemical physics Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Electrode Atom Molecule General Materials Science ALKANEDITHIOLS |
| Zdroj: | Nano Letters, 8(10), 3381-3385. AMER CHEMICAL SOC |
| ISSN: | 1530-6992 1530-6984 |
| Popis: | Gold-molecule-gold junctions can be formed by carefully breaking a gold wire in a solution containing dithiolated molecules. Surprisingly, there is little understanding on the mechanical details of the bridge formation process and specifically on the role that the dithiol molecules play themselves. We propose that alkanedithiol molecules have already formed bridges between the gold electrodes before the atomic gold-gold junction is broken. This leads to stabilization of the single atomic gold junction, as observed experimentally. Our data can be understood within a simple spring model. 14 pages, 3 figures, 1 table |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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