Nanomechanical modulation of single-electron tunneling through molecular-assembled metallic nanoparticles

Yongqiang Xue, Mark A. Ratner

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


We present a microscopic study of single-electron tunneling in nanomechanical double-barrier tunneling junctions formed using a vibrating scanning nanoprobe and a metallic nanoparticle connected to a metallic substrate through a molecular bridge. We analyze the motion of single electrons on and off the nanoparticle through the tunneling current, the displacement current, and the charging-induced electrostatic force on the vibrating nanoprobe. We demonstrate the mechanical single-electron turnstile effect by applying the theory to a gold nanoparticle connected to the gold substrate through an alkane dithiol molecular bridge and probed by a vibrating platinum tip.

Original languageEnglish
Article number155408
Pages (from-to)155408-1-155408-6
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number15
Publication statusPublished - Oct 2004

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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