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J Chem Phys. 2005 Jul 22;123(4):044703. doi: 10.1063/1.1996567.

Coulomb blockade of small Pd clusters.

The Journal of chemical physics

Nuri Oncel, Ann-Sofie Hallback, Harold J W Zandvliet, Emiel A Speets, Bart Jan Ravoo, David N Reinhoudt, Bene Poelsema

Affiliations

  1. Solid State Physics Group and Microsystems and Engineering Sciences Applications (MESA)+ Institute for Nanotechnology, University of Twente, P.O. Box 217,7500 AE Enschede, The Netherlands.

PMID: 16095380 DOI: 10.1063/1.1996567

Abstract

Single-electron tunneling through Au substrate-alkanethiol-Pd cluster-tip junctions is investigated with scanning tunneling spectroscopy. The measured I(V) curves reveal several characteristic features of the Coulomb blockade, namely, the presence of a Coulomb gap and a Coulomb staircase. By using the orthodox theory of single-electron tunneling, the capacitances and resistances of the double junction system as well as the fractional charge are extracted from the experimental data.

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