Magnetic energy bands of a 2D graphite layer in the spatially modulated magnetic field

Y. H. Chiu, Y. H. Lai, J. H. Ho, D. S. Chuu, M. F. Lin

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


A 2D graphite layer exists in a spatially modulated magnetic field. The low magnetic energy bands, which are calculated from the Peierls tight-binding model, strongly depend on the period and strength of a modulated magnetic field. There are a lot of 1D parabolic bands. Such bands exhibit the double degeneracy, strong energy dispersions, and extra band-edge states. Density of states owns many asymmetric square-root divergent structures, mainly owing to the band-edge states in 1D parabolic bands. The band-edge state energies decrease with the increasing field period, while the opposite is true for the dependence on the field strength. That a modulated magnetic field reduces dimensionality and thus drastically changes electronic properties could be examined by the experimental measurements.

Original languageEnglish
Pages (from-to)2022-2024
Number of pages3
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Issue number6
Publication statusPublished - 2008 Apr

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics


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