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Phys. Rev. Lett. 91, 205503 (2003) [4 pages]

Helical Gold Nanotube Synthesized at 150 K

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Yoshifumi Oshima* and Akiko Onga
Department of Materials Science & Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502 Japan

Kunio Takayanagi
Department of Physics, Tokyo Institute of Technology, Oh-okayama, Meguro-ku, Tokyo 152-8551 Japan

Received 16 April 2003; published 13 November 2003

Gold nanowires were synthesized at 150 K by electron beam thinning of a gold thin foil in an UHV electron microscope. The gold nanowires were found to have a helical multishell structure (HMS). One particular nanowire, which was thinner than the 7-1 HMS nanowire, was found to have a tubular structure. The gold single wall nanotube is composed of five atomic rows that coil about the tube axis. The diameter was 0.4 nm and the pitch was 11 nm. The stability of the (5,3) nanotube was discussed in terms of the shear deformation of the triangular network of gold atoms.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.91.205503
DOI:
10.1103/PhysRevLett.91.205503
PACS:
61.46.+w, 68.37.Lp, 68.65.La

*Electronic address: ohshima@materia.titech.ac.jp