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TU Dresden » Faculty of Mechanical Science and Engineering » Institute for Materials Science » Chair of Materials Science and Nanotechnology

Wednesday, 13 June 2007
(at 12:30 in room Phy 8.1.09)
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Counting and manipulating single electrons using a carbon

Miriam del Valle

Institut f. Theoretische Physik
Universität Regensburg

(From arxiv:0704.1794): We report on the electric measurements of an individual Au nanoparticle with an ultra-high contact resistance of about 10s19 Ω. The high-impedance measurements have been carried out by counting the electrons that are transferred onto the particle. In order to do this, a carbon nanotube is used as the electrode for the supply of electrons but also as the detector of the charge transfer. Measurements using single-electron detection allow us to determine the separation between the electron states in the Au nanoparticle, which is about 4 meV, consistent with the charging energy of the particle. Single-electron detection with nanotubes offers great promise for the study of electron transfer in highly resistive molecular systems.

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Invited by G. Cuniberti, C. Strunk (JClub)

Within the Journal Club 52 315

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