Magneto-orbital effect without spin-orbit interactions in a noncentrosymmetric zeolite-templated carbon structure

Takashi Koretsune, Ryotaro Arita, Hideo Aoki

研究成果: Article査読

11 被引用数 (Scopus)

抄録

A peculiar manifestation of orbital angular momentum is proposed for a zeolite-templated carbon system, C 36H 9. The structure, being a network of nanoflakes in the shape of a "pinwheel," lacks inversion symmetry. While the unit cell is large, the electronic structure obtained with a first-principles density-functional theory and captured as an effective tight-binding model in terms of maximally localized Wannier functions, exhibits an unusual feature that the valence band top comes from two chiral states having orbital magnetic momenta of ±1. The noncentrosymmetric lattice structure then makes the band dispersion asymmetric, as reminiscent of, but totally different from, spin-orbit systems. The unusual feature is predicted to imply a current-induced orbital magnetism when holes are doped.

本文言語English
論文番号125207
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
86
12
DOI
出版ステータスPublished - 2012 9 28
外部発表はい

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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