Negative Differential Resistance and Current Rectification in C$_{60}$ Multilayers

ORAL

Abstract

Electronic components exhibiting negative differential resistance (NDR) and current rectification (CR) play a crucial role in modern electronic devices. Though most such devices are based on semiconducting technology, several molecular systems have been recently shown to exhibit NDR and CR that involve very different mechanisms. This talk will focus on NDR and CR behavior seen in our scanning tunneling spectroscopy studies of C$_{60}$ multilayers on metal surfaces. The NDR mechanism observed here appears to differ from those seen in previous studies and is consistent with the behavior expected from a bias-dependent tunneling barrier height.

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Authors

  • Michael Grobis

  • Andre Wachowiak

    Department of Physics, University of California at Berkeley and Material Sciences Division, Lawrence Berkeley Laboratory, Berkeley, California

  • Ryan Yamachika

  • Michael Crommie

    Department of Physics, University of California, Berkeley, Materials Sciences Division Lawrence Berkeley National Laboratory, Berkeley, CA, Department of Physics, University of California, Berkeley, Department of Physics, University of California at Berkeley and Material Sciences Division, Lawrence Berkeley Laboratory, U.C. Berkeley Physics Dept. and Material Science Division, LBNL