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Ohmann R, Meyer J, Nickel A, et al. Supramolecular Rotor and Translator at Work: On-Surface Movement of Single Atoms. ACS Nano. 2015;9(8):8394-400doi: 10.1021/acsnano.5b03131.
Ohmann, R., Meyer, J., Nickel, A., Echeverria, J., Grisolia, M., Joachim, C., Moresco, F., & Cuniberti, G. (2015). Supramolecular Rotor and Translator at Work: On-Surface Movement of Single Atoms. ACS nano, 9(8), 8394-400. https://doi.org/10.1021/acsnano.5b03131
Ohmann, Robin, et al. "Supramolecular Rotor and Translator at Work: On-Surface Movement of Single Atoms." ACS nano vol. 9,8 (2015): 8394-400. doi: https://doi.org/10.1021/acsnano.5b03131
Ohmann R, Meyer J, Nickel A, Echeverria J, Grisolia M, Joachim C, Moresco F, Cuniberti G. Supramolecular Rotor and Translator at Work: On-Surface Movement of Single Atoms. ACS Nano. 2015 Aug 25;9(8):8394-400. doi: 10.1021/acsnano.5b03131. Epub 2015 Jul 29. PMID: 26158314.
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ACS Nano. 2015 Aug 25;9(8):8394-400. doi: 10.1021/acsnano.5b03131. Epub 2015 Jul 29.

Supramolecular Rotor and Translator at Work: On-Surface Movement of Single Atoms.

ACS nano

Robin Ohmann, Jörg Meyer, Anja Nickel, Jorge Echeverria, Maricarmen Grisolia, Christian Joachim, Francesca Moresco, Gianaurelio Cuniberti

Affiliations

  1. GNS & MANA Satellite, CEMES, CNRS , 29 Rue J. Marvig, 31055 Toulouse Cedex, France.
  2. International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS) , 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.

PMID: 26158314 DOI: 10.1021/acsnano.5b03131

Abstract

A supramolecular nanostructure composed of four 4-acetylbiphenyl molecules and self-assembled on Au (111) was loaded with single Au adatoms and studied by scanning tunneling microscopy at low temperature. By applying voltage pulses to the supramolecular structure, the loaded Au atoms can be rotated and translated in a controlled manner. The manipulation of the gold adatoms is driven neither by mechanical interaction nor by direct electronic excitation. At the electronic resonance and driven by the tunneling current intensity, the supramolecular nanostructure performs a small amount of work of about 8 × 10(-21) J, while transporting the single Au atom from one adsorption site to the next. Using the measured average excitation time necessary to induce the movement, we determine the mechanical motive power of the device, yielding about 3 × 10(-21) W.

Keywords: scanning tunneling microscopy; single-atom movement; supramolecular structures; voltage pulses

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