Playing Pinball with Atoms

Amirmehdi Saedi, Arie van Houselt, Raoul van Gastel, Bene Poelsema and Harold J. W. Zandvliet*
Physical Aspects of Nanoelectronics and Solid State Physics, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, NL-7500AE Enschede, The Netherlands
Nano Lett., 2009, 9 (5), pp 1733–1736
DOI: 10.1021/nl8022884
Publication Date (Web): September 10, 2008
Copyright © 2008 American Chemical Society

Both authors contributed equally to this work.

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* To whom correspondence should be addressed.

Abstract

Abstract Image

We demonstrate the feasibility of controlling an atomic scale mechanical device by an external electrical signal. On a germanium substrate, a switching motion of pairs of atoms is induced by electrons that are directly injected into the atoms with a scanning tunneling microscope tip. By precisely controlling the tip current and distance we make two atom pairs behave like the flippers of an atomic-sized pinball machine. This atomic scale mechanical device exhibits six different configurations.

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History

  • Published In Issue May 13, 2009
  • Article ASAPSeptember 10, 2008
  • Received: July 29, 2008
    Revised: August 28, 2008

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