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One-Dimensional Metallofullerene Crystal Generated Inside Single-Walled Carbon Nanotubes

K. Hirahara, K. Suenaga, S. Bandow, H. Kato, T. Okazaki, H. Shinohara, and S. Iijima
Phys. Rev. Lett. 85, 5384 – Published 18 December 2000
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Abstract

Electron microscope imaging for gadolinium metallofullerenes encapsulating in single-wall carbon nanotubes [(Gd@C82)n@SWNTs] identifies the single Gd atom encaged in each. The intermolecular distance between Gd@C82 is extremely regular, regarding the chains of Gd@C82 as novel one-dimensional crystals. Chemical state analysis of Gd atoms suggests evidence for charge transfer from Gd to either a fullerene cage or a nanotube. The slopes of the temperature dependence of electric resistance for the matlike films of (Gd@C82)n@SWNTs and (C60)n@SWNTs are much steeper than that for empty SWNTs, suggesting the electron scattering due to the electrostatic potential from inside fullerenes playing an important role.

  • Received 7 June 2000

DOI:https://doi.org/10.1103/PhysRevLett.85.5384

©2000 American Physical Society

Authors & Affiliations

K. Hirahara1, K. Suenaga1, S. Bandow1, H. Kato2, T. Okazaki2, H. Shinohara2, and S. Iijima1,3,*

  • 1Japan Science and Technology Corporation, Faculty of Science and Technology, Meijo University, Tenpaku-ku, Nagoya 468-8502, Japan
  • 2Department of Chemistry, Nagoya University, Nagoya, 464-8602, Japan
  • 3Japan Science and Technology Corporation, NEC Corporation, Miyukigaoka, Tsukuba 305-8501, Japan

  • *Author to whom correspondence should be addressed.Electronic address: iijimas@meijo-u.ac.jp

See Also

Buckyballs inside Nanotubes

Phys. Rev. Focus 6, 27 (2000)

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Vol. 85, Iss. 25 — 18 December 2000

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