Butterfly spectrum and quantum Hall effect in three-dimensional FISDW

M. Koshino, H. Aoki, T. Osada

Research output: Contribution to journalConference articlepeer-review


By extending the two-dimensional (2D) model for Bechgaard salts, we explore field-induced spin-density wave (FISDW) in three-dimensional (3D) systems. We show that a series of FISDW phases peculiar to 3D do exist for quasi-1D systems (rather than quasi-2D ones such as Bechgaard salts). The 3D FISDW is characterized by the quantum Hall effect with σxy and σzx being quantized and the quasi-particle spectrum that is fractal as in the Hofstadter butterfly. This state may be regarded as one realization of the general theory for the 3D butterfly [Phys. Rev. Lett. 86 (2001) 1062].

Original languageEnglish
Pages (from-to)79-81
Number of pages3
JournalSynthetic Metals
Publication statusPublished - 2003 Mar 13
EventISCOM 2001 - Rusutsu, Hokkaido, Japan
Duration: 2001 Sep 102001 Sep 14


  • Hofstadter butterfly
  • Quantum Hall effect

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry


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