Evidence for non-conservative current-induced forces in the breaking of Au and Pt atomic chains
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Title: | Evidence for non-conservative current-induced forces in the breaking of Au and Pt atomic chains |
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Authors: | Sabater, Carlos | Untiedt, Carlos | Ruitenbeek, J.M. van |
Research Group/s: | Grupo de Nanofísica |
Center, Department or Service: | Universidad de Alicante. Departamento de Física Aplicada | Universidad de Alicante. Instituto Universitario de Materiales |
Keywords: | Atomic chain | Atomic-size contacts | Break junctions | Current-induced forces |
Knowledge Area: | Física de la Materia Condensada |
Issue Date: | 9-Dec-2015 |
Publisher: | Beilstein-Institut |
Citation: | Beilstein J. Nanotechnol. 2015, 6, 2338–2344. doi:10.3762/bjnano.6.241 |
Abstract: | This experimental work aims at probing current-induced forces at the atomic scale. Specifically it addresses predictions in recent work regarding the appearance of run-away modes as a result of a combined effect of the non-conservative wind force and a ‘Berry force’. The systems we consider here are atomic chains of Au and Pt atoms, for which we investigate the distribution of break down voltage values. We observe two distinct modes of breaking for Au atomic chains. The breaking at high voltage appears to behave as expected for regular break down by thermal excitation due to Joule heating. However, there is a low-voltage breaking mode that has characteristics expected for the mechanism of current-induced forces. Although a full comparison would require more detailed information on the individual atomic configurations, the systems we consider are very similar to those considered in recent model calculations and the comparison between experiment and theory is very encouraging for the interpretation we propose. |
Sponsor: | This work is part of the research programme of the Foundation for Fundamental Research on Matter (FOM), which is financially supported by the Netherlands Organisation for Scientific Research (NWO), and is supported by the Spanish government through grant FIS2013-47328, the Conselleria d’Educació of the Generalitat Valenciana through grant PROMETEO/2012/011. |
URI: | http://hdl.handle.net/10045/52039 |
ISSN: | 2190-4286 |
DOI: | 10.3762/bjnano.6.241 |
Language: | eng |
Type: | info:eu-repo/semantics/article |
Rights: | © 2015 Sabater et al; licensee Beilstein-Institut. This is an Open Access article under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The license is subject to the Beilstein Journal of Nanotechnology terms and conditions: (http://www.beilstein-journals.org/bjnano) |
Peer Review: | si |
Publisher version: | http://dx.doi.org/10.3762/bjnano.6.241 |
Appears in Collections: | INV - Grupo de Nanofísica - Artículos de Revistas |
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2015_Sabater_etal_BeilsteinJNanotechnol.pdf | 1,95 MB | Adobe PDF | Open Preview | |
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