Voltage-dependent conductance states of a single-molecule junction

Y F Wang, N Néel, J Kröger, H Vázquez, M Brandbyge, B Wang, R Berndt

    Research output: Contribution to journalJournal articleResearchpeer-review


    Ag–Sn-phthalocyanine–Ag junctions are shown to exhibit three conductance states. While the junctions are conductive at low bias, their impedance drastically increases above a critical bias. Two-level fluctuations occur at intermediate bias. These characteristics may be used to protect a nanoscale circuit. Further experiments along with calculations reveal that the self-limiting conductance of the junctions is due to reversible changes of the junction geometry.
    Original languageEnglish
    JournalJournal of Physics Condensed Matter
    Issue number39
    Number of pages4
    Publication statusPublished - 2012


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