Journal Article

PreJuSER-60999

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Kondo effect by controlled cleavage of a single-molecule contact

Temirov, R. ; Lassise, A. ; Anders, F. B. ; Tautz, F. S.FZJ*

2008
IOP Publ. Bristol

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Please use a persistent id in citations: doi:10.1088/0957-4484/19/6/065401

Abstract: Conductance measurements of a molecular wire, contacted between an epitaxial molecule-metal bond and the tip of a scanning tunnelling microscope, are reported. Controlled retraction of the tip gradually de-hybridizes the molecule from the metal substrate. This tunes the wire into the Kondo regime in which the renormalized molecular transport orbital serves as a spin impurity at half-filling and the Kondo resonance opens up an additional transport channel. Numerical renormalization group simulations suggest this type of behaviour to be generic for a common class of metal-molecule bonds. The results demonstrate a new approach to single-molecule experiments with atomic-scale contact control and prepare the way for the ab initio simulation of many-body transport through single-molecule junctions.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Grenz- und Oberflächen (IBN-3)
2. Center of Nanoelectronic Systems for Information Technology (CNI)
3. Jülich-Aachen Research Alliance - Fundamentals of Future Information Technology (JARA-FIT)

Research Program(s):

1. Grundlagen für zukünftige Informationstechnologien (P42)

Appears in the scientific report 2008

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