Universal Scaling of Nonequilibrium Transport in the Kondo Regime of Single Molecule Devices

ORAL

Abstract

Scaling laws and universality are often associated with systems exhibiting emergent phenomena possessing a characteristic energy scale. We report nonequilibrium transport measurements on two different types of single-molecule transistor (SMT) devices in the Kondo regime. The conductance at low bias and temperature adheres to a scaling function characterized by two parameters. This result, analogous to that reported recently in semiconductor dots with Kondo temperatures two orders of magnitude lower, demonstrates the universality of this scaling form. We compare the extracted values of the scaling coefficients to previous experimental and theoretical results.

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Authors

  • Gavin Scott

    Rice University, Dept of Physics \& Astronomy

  • Zachary Keane

    Rice University, Dept of Physics \& Astronomy, Rice University

  • Jacob Ciszek

    Rice University, Dept of Chemistry

  • James Tour

    Rice University, Dept of Chemistry

  • Douglas Natelson

    Rice University, Department of Physics and Astronomy, Rice University, Rice University, Dept of Physics \& Astronomy, Dept of Electrical \& Computer Engineering, Department of Physics and Astronomy, Rice University, 6100 Main st. Houston, TX, 77005, Dept. Physics and Astronomy. Rice University., Rice University, Dept. of Physics and Astronomy