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Control of electron transport through Fano resonances in molecular wires.

Papadopoulos, T. A. and Grace, I. M. and Lambert, C. J. (2006) Control of electron transport through Fano resonances in molecular wires. Physical Review B, 74 (19). p. 193306. ISSN 1098-0121

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Abstract

Using a first principles approach, we study the electron transport properties of two molecules of length 2.5 nm, which are the building blocks for a new class of molecular wires containing fluorenone units. We show that the presence of side groups attached to these units leads to Fano resonances close to the Fermi energy. As a consequence electron transport through the molecule can be controlled either by chemically modifying the side group, or by changing the conformation of the side group. This sensitivity, which is not present in Breit-Wigner resonances, opens up new possibilities for novel single-molecule sensors.

Item Type: Article
Journal or Publication Title: Physical Review B
Uncontrolled Keywords: organic compounds ; electron spin polarisation ; ab initio calculations ; molecular configurations ; molecular electronics
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 554
Deposited By: Prof Colin J. Lambert
Deposited On: 20 Jun 2007
Refereed?: Yes
Published?: Published
Last Modified: 17 Sep 2013 08:23
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/554

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