Superperiodic conductance in a molecularly wired double-dot system self-assembled in a nanogap electrode

Yutaka Noguchi, Toshifumi Terui, Takuya Katayama, Michio M. Matsushita, Tadashi Sugawara

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

We examined charge transport properties of two gold nanoparticles (GNPs) in a nanogap transistor with a gap width of ∼10 nm. The GNPs connected to each other and to outer electrodes through a small number of dithiolated terthiophene wire molecules as a tunneling barrier. The transport property measured at 11 K was analyzed based on the theory of double-dot single-electron transistors and inelastic cotunneling. The results clearly show mutual Coulomb interactions between the two GNPs. Moreover, we found the appearance of superperiodic conductance, because of differences in the charging energy of the two GNPs.

Original languageEnglish
Article number094313
JournalJournal of Applied Physics
Volume108
Issue number9
DOIs
Publication statusPublished - 1 Nov 2010

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