Precursor configurations and post-rupture evolution of Ag-CO-Ag single-molecule junctions

Balogh, Zoltan and Visontai, David and Makk, Peter and Gillemot, Katalin and Oroszlany, Laszlo and Posa, Laszlo and Lambert, Colin and Halbritter, Andras (2014) Precursor configurations and post-rupture evolution of Ag-CO-Ag single-molecule junctions. Nanoscale, 6 (24). pp. 14784-14791. ISSN 2040-3364

Full text not available from this repository.

Abstract

Experimental correlation analysis and first-principles theory are used to probe the structure and evolution of Ag-CO-Ag single-molecule junctions both before the formation and after the rupture of the junctions. Two dimensional correlation histograms and conditional histograms demonstrate that prior to the single-molecule bridge configuration the CO molecule is already bound parallel to the Ag single-atom contact. This molecular precursor configuration is accompanied by the opening of additional conductance channels compared to the single-channel transport in pure Ag monoatomic junctions. To investigate the post-rupture evolution of the junction we introduce a cross-correlation analysis between the opening and the subsequent closing conductance traces. This analysis implies that the molecule is bound rigidly to the apex of one electrode, and so the same single-molecule configuration is re-established as the junction is closed. The experimental results are confirmed by ab initio simulations of the evolution of contact geometries, transmission eigenvalues and scattering wavefunctions.

Item Type: Journal Article
Journal or Publication Title: Nanoscale
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/2500
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 84327
Deposited By: ep_importer_pure
Deposited On: 25 Jan 2017 13:22
Refereed?: Yes
Published?: Published
Last Modified: 01 Jan 2020 09:34
URI: https://eprints.lancs.ac.uk/id/eprint/84327

Actions (login required)

View Item View Item