Nanotube-based molecular magnets with spin-polarized edge states

Yusuke Higuchi, Koichi Kusakabe, Naoshi Suzuki, Shinji Tsuneyuki, Jun Yamauchi, Kazuto Akagi, Yoshihide Yoshimoto

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Edge effects on possible magnetism appearing in finite hydrogenated zigzag nanotubes are investigated using the DFT-LSDA calculations. Our result shows that two types of edges, i.e. a mono-hydrogenated zigzag edge (MHZE) and a di-hydrogenated zigzag edge (DHZE), can give magnetic moments in finite nanotubes. Due to curvature of the tube, however, the total magnetic moment Stot is smaller than an expected value given by a counting rule of 5tot, which holds for magnetic nanographite ribbons. In addition to magnetic nanotubes found by Okada and Oshiyama, we show that a (7, 0) tube and an (8,0) tube with both MHZE and DHZE are magnetic. The reactions to create hydrogenated (7,0) and (8,0) tubes are exothermic.

Original languageEnglish
JournalJournal of Physics Condensed Matter
Volume16
Issue number48
DOIs
Publication statusPublished - 2004 Dec 8

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Nanotubes
Magnets
nanotubes
magnets
Magnetic moments
tubes
Magnetism
Discrete Fourier transforms
magnetic moments
ribbons
counting
curvature

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Nanotube-based molecular magnets with spin-polarized edge states. / Higuchi, Yusuke; Kusakabe, Koichi; Suzuki, Naoshi; Tsuneyuki, Shinji; Yamauchi, Jun; Akagi, Kazuto; Yoshimoto, Yoshihide.

In: Journal of Physics Condensed Matter, Vol. 16, No. 48, 08.12.2004.

Research output: Contribution to journalArticle

Higuchi, Yusuke ; Kusakabe, Koichi ; Suzuki, Naoshi ; Tsuneyuki, Shinji ; Yamauchi, Jun ; Akagi, Kazuto ; Yoshimoto, Yoshihide. / Nanotube-based molecular magnets with spin-polarized edge states. In: Journal of Physics Condensed Matter. 2004 ; Vol. 16, No. 48.
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