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Experimental Evidence for Quantum Interference and Vibrationally Induced Decoherence in Single-Molecule Junctions

Ballmann, Stefan and Härtle, Rainer and Coto, Pedro B. and Elbing, Mark and Mayor, Marcel and Bryce, Martin R. and Thoss, Michael and Weber, Heiko B.. (2012) Experimental Evidence for Quantum Interference and Vibrationally Induced Decoherence in Single-Molecule Junctions. Physical Review Letters, 109 (5). 056801.

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Official URL: http://edoc.unibas.ch/dok/A6031596

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Abstract

We analyze quantum interference and decoherence effects in single-molecule junctions both experimentally and theoretically by means of the mechanically controlled break junction technique and density-functional theory. We consider the case where interference is provided by overlapping quasidegenerate states. Decoherence mechanisms arising from electronic-vibrational coupling strongly affect the electrical current flowing through a single-molecule contact and can be controlled by temperature variation. Our findings underline the universal relevance of vibrations for understanding charge transport through molecular junctions.
Faculties and Departments:05 Faculty of Science > Departement Chemie > Chemie > Molecular Devices and Materials (Mayor)
UniBasel Contributors:Mayor, Marcel
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Physical Society
ISSN:0031-9007
e-ISSN:1079-7114
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
Identification Number:
Last Modified:05 Apr 2017 14:19
Deposited On:08 Nov 2012 16:17

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