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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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Journal-Club
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.



related paper (html)

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

Within the Journal Club 52 315

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