Mechanical gate control for atom-by-atom cluster assembly with scanning probe microscopy

Yoshiaki Sugimoto (), Ayhan Yurtsever, Naoki Hirayama, Masayuki Abe and Seizo Morita
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Yoshiaki Sugimoto: Electronic and Information Engineering, Graduate School of Engineering, Osaka University
Ayhan Yurtsever: Nanoscience and Nanotechnology Center, The Institute of Scientific and Industrial Research, Osaka University
Naoki Hirayama: Electronic and Information Engineering, Graduate School of Engineering, Osaka University
Masayuki Abe: Graduate School of Engineering, Nagoya University
Seizo Morita: Nanoscience and Nanotechnology Center, The Institute of Scientific and Industrial Research, Osaka University

Nature Communications, 2014, vol. 5, issue 1, 1-7

Abstract: Abstract Nanoclusters supported on substrates are of great importance in physics and chemistry as well as in technical applications, such as single-electron transistors and nanocatalysts. The properties of nanoclusters differ significantly from those of either the constituent atoms or the bulk solid, and are highly sensitive to size and chemical composition. Here we propose a novel atom gating technique to assemble various atom clusters composed of a defined number of atoms at room temperature. The present gating operation is based on the transfer of single diffusing atoms among nanospaces governed by gates, which can be opened in response to the chemical interaction force with a scanning probe microscope tip. This method provides an alternative way to create pre-designed atom clusters with different chemical compositions and to evaluate their chemical stabilities, thus enabling investigation into the influence that a single dopant atom incorporated into the host clusters has on a given cluster stability.

Date: 2014
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DOI: 10.1038/ncomms5360

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