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The effect of bonding of a CO molecule on the conductance of atomic metal wires

Kiguchi, M. and Djukic, D. and van Ruitenbeek, J. M. (2007) The effect of bonding of a CO molecule on the conductance of atomic metal wires. NANOTECHNOLOGY, 18 (3).

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Official URL: http://www.iop.org/EJ/abstract/0957-4484/18/3/0352...

Abstract

We have measured the effect of bonding of a CO molecule on the conductance of Au, Cu, Pt and Ni atomic contacts at 4.2 K. When CO gas is admitted to the metal nanocontacts, a conductance feature appears in the conductance histogram near 0.5 of the quantum unit of conductance, for all metals. For Au, the intensity of this fractional conductance feature can be tuned with the bias voltage, and it disappears at high bias voltage (above similar to 200 mV). The bonding of CO to Au appears to be weakest, and associated with the formation of monatomic Au wire.

Item Type:Article
Subjects:Physical Science > Nanoelectronics
Engineering > Nanotechnology applications in ICT
ID Code:6262
Deposited By:IoN
Deposited On:22 Dec 2009 16:34
Last Modified:22 Dec 2009 16:34

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