Formation of atomic-sized contacts controlled by electrochemical methods

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Title: Formation of atomic-sized contacts controlled by electrochemical methods
Authors: Calvo, M. Reyes | Mares, Ancuta I. | Climent, Victor | Ruitenbeek, J.M. van | Untiedt, Carlos
Research Group/s: Grupo de Nanofísica | Electroquímica de Superficies
Center, Department or Service: Universidad de Alicante. Departamento de Física Aplicada | Universidad de Alicante. Departamento de Química Física
Keywords: Atomic contacts | Electrochemistry | Gold | Nanostructures | Shell effects
Knowledge Area: Física de la Materia Condensada | Química Física
Issue Date: 4-Jun-2007
Publisher: Wiley-VCH Verlag GmbH & Co. KGaA
Citation: CALVO, M. Reyes, et al. “Formation of atomic-sized contacts controlled by electrochemical methods”. physica status solidi (a). Vol. 204, No. 6 (2007). ISSN 1862-6300, pp. 1677-1685
Abstract: Electrochemical methods have recently become an interesting tool for fabricating and characterizing nanostructures at room temperature. Simplicity, low cost and reversibility are some of the advantages of this technique that allows to work at the nanoscale without requiring sophisticated instrumentation. In our experimental setup, we measure the conductance across a nanocontact fabricated either by dissolving a macroscopic gold wire or by depositing gold in between two separated gold electrodes. We have achieved a high level of control on the electrochemical fabrication of atomic-sized contacts in gold. The use of electrochemistry as a reproducible technique to prepare nanocontacts will open several possibilities that are not feasible with other methodologies. It involves, also, the possibility of reproducing experiments that today are made by more expensive, complicated or irreversible methods. As example, we show here a comparison of the results when looking for shell effects in gold nanocontacts with those obtained by other techniques.
Sponsor: This work is part of the research program of the “Stichting FOM”. C.U. and R.C. acknowledge support of the Spanish MEC through FIS2004-02356 and Generalitat Valenciana through ACOMP06/138. C.U. and V.C. acknowledge financial support through the “Ramón y Cajal” program of the Spanish MCyT.
URI: http://hdl.handle.net/10045/25201
ISSN: 1862-6300 (Print) | 1862-6319 (Online)
DOI: 10.1002/pssa.200675319
Language: eng
Type: info:eu-repo/semantics/article
Rights: The definitive version is available at http://onlinelibrary.wiley.com/
Peer Review: si
Publisher version: http://dx.doi.org/10.1002/pssa.200675319
Appears in Collections:INV - EQSUP - Artículos de Revistas
INV - Grupo de Nanofísica - Artículos de Revistas

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