Coulomb blockade of small Pd clusters.
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.
Oncel
Nuri
N
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.
Hallback
Ann-Sofie
AS
Zandvliet
Harold J W
HJ
Speets
Emiel A
EA
Ravoo
Bart Jan
BJ
Reinhoudt
David N
DN
Poelsema
Bene
B