Revealing the Geometry and Conductance of Double-Stranded Atomic Chains of Gold
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Title: | Revealing the Geometry and Conductance of Double-Stranded Atomic Chains of Gold |
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Authors: | Sabater, Carlos | Palacios Burgos, Juan José | Caturla, Maria J. | Untiedt, Carlos |
Research Group/s: | Grupo de Nanofísica | Física de la Materia Condensada |
Center, Department or Service: | Universidad de Alicante. Departamento de Física Aplicada |
Keywords: | Gold | Atomic chains | Double-stranded | Geometry | Conductance |
Knowledge Area: | Física Aplicada | Física de la Materia Condensada |
Issue Date: | 19-Nov-2020 |
Publisher: | American Chemical Society |
Citation: | The Journal of Physical Chemistry C. 2020, 124(49): 26596-26602. https://doi.org/10.1021/acs.jpcc.0c07264 |
Abstract: | Here we report on the identification and characterization of suspended double-stranded Au atomic chains up to ∼4 atoms long, using a scanning tunneling microscope adapted for the fabrication and simultaneous recording of the conductance. These chains are one of the smallest structures with the highest stability connecting two metallic electrodes, identified from the evolution of the conductance in the process of the controlled breakage of the contact between two metals. Molecular dynamics simulations and density functional theory electron transport calculations help us to unveil the richness of the geometric structures appearing in the experiments in the form of double-stranded chains, their stability, and how these can evolve into the formation of monoatomic chains. |
Sponsor: | This work was supported by the Generalitat Valenciana through PROMETEO2017/139, the Spanish government through Grants MAT2016-78625-C2-1-P, FIS2016-80434-P, and PID2019-109539GB-C4, and the Marı́a de Maeztu Programme for Units of Excellence in R&D (CEX2018-000805-M); by Comunidad Autónoma de Madrid through Grant S2018/NMT-4321 (NanomagCOST-CM), by the Fundación Ramón Areces, and by the European Union Graphene Flagship under Grant No. 604391. C.S. gratefully acknowledges financial support from Generalitat Valenciana with the programs GENT (CDEIGENT2018/028). J.J.P. acknowledges the computer resources and assistance provided by the Barcelona Supercomputing Center (FI-2019-2-0007) and the Universidad Autónoma de Madrid. |
URI: | http://hdl.handle.net/10045/110832 |
ISSN: | 1932-7447 (Print) | 1932-7455 (Online) |
DOI: | 10.1021/acs.jpcc.0c07264 |
Language: | eng |
Type: | info:eu-repo/semantics/article |
Rights: | © 2020 American Chemical Society |
Peer Review: | si |
Publisher version: | https://doi.org/10.1021/acs.jpcc.0c07264 |
Appears in Collections: | INV - Física de la Materia Condensada - Artículos de Revistas INV - Grupo de Nanofísica - Artículos de Revistas |
Files in This Item:
File | Description | Size | Format | |
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Sabater_etal_2020_JPhysChemC_final.pdf | Versión final (acceso restringido) | 8,2 MB | Adobe PDF | Open Request a copy |
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