Calibration of the length of a chain of single gold atoms
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Title: | Calibration of the length of a chain of single gold atoms |
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Authors: | Untiedt, Carlos | Yanson, A.I. | Grande, Rocío | Rubio Bollinger, Gabino | Agraït de la Puente, Nicolás | Vieira Díaz, Sebastián | Ruitenbeek, J.M. van |
Research Group/s: | Grupo de Nanofísica |
Center, Department or Service: | Universidad de Alicante. Departamento de Física Aplicada |
Keywords: | Single gold atoms | Calibration | Length | MCBJ | STM |
Knowledge Area: | Física de la Materia Condensada |
Issue Date: | 29-Aug-2002 |
Publisher: | American Physical Society |
Citation: | UNTIEDT, C., et al. “Calibration of the length of a chain of single gold atoms”. Physical Review B. Vol. 66, No. 8 (2002). ISSN 1098-0121, pp. 085418-1/6 |
Abstract: | Using a scanning tunnelling microscope or mechanically controllable break junction it has been shown that it is possible to control the formation of a wire made of single gold atoms. In these experiments an interatomic distance between atoms in the chain of ∼3.6 Å was reported which is not consistent with recent theoretical calculations. Here, using precise calibration procedures for both techniques, we measure the length of the atomic chains. Based on the distance between the peaks observed in the chain length histogram we find the mean value of the interatomic distance before chain rupture to be 2.5±0.2 Å. This value agrees with the theoretical calculations for the bond length. The discrepancy with the previous experimental measurements was due to the presence of He gas, that was used to promote the thermal contact, and which affects the value of the work function that is commonly used to calibrate distances in scanning tunnelling microscopy and mechanically controllable break junctions at low temperatures. |
Sponsor: | This work is part of the research program of the "Stichting FOM", which is financially supported by NWO, it was funded by the DGI under Contract No. MAT2001-1281 and the research has been supported by the Marie Curie Program of the European Community under Contract No. HPMF-CT-2000-0072. R.G. acknowledges financial support from U.A.M. |
URI: | http://hdl.handle.net/10045/25192 |
ISSN: | 1098-0121 (Print) | 1550-235X (Online) | 10.1103/PhysRevB.66.085418 |
Language: | eng |
Type: | info:eu-repo/semantics/article |
Rights: | © 2002 The American Physical Society |
Peer Review: | si |
Publisher version: | http://dx.doi.org/10.1103/PhysRevB.66.085418 |
Appears in Collections: | INV - Grupo de Nanofísica - Artículos de Revistas |
Files in This Item:
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2002_PhysRevB.66.085418.pdf | 303,49 kB | Adobe PDF | Open Preview | |
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