A theoretical study on orbital magnetism of mesoscopic ring systems

Masako Saito, Takahiko Sasaki, Hidetoshi Fukuyama

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


Spatial distribution of current and resultant magnetization of mesoscopic ring systems with finite width are investigated in various regimes of temperature and magnetic field based on the exactly solvable model. The Aharonov-Bohm (AB) oscillation is observed in low temperatures when electrons occupy only one Landau sublevel. When several Landau sublevels are occupied, the coherence of the AB oscillation is destroyed and mesoscopic fluctuations appear instead. The finite Landau sublevels leads to also de Haas-van Alphen oscillations in relatively low temperatures. In high temperatures, the Landau diamagnetism is observed like in the disk systems.

Original languageEnglish
Pages (from-to)362-363
Number of pages2
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Issue number1-3
Publication statusPublished - 2003 May
Externally publishedYes
Event23rd International Conference on Low Temperature Physics - Hiroshima, Japan
Duration: 2002 Aug 202002 Aug 27


  • Aharonov-Bohm oscillation
  • De Haas-van Alphen oscillation
  • Mesoscopic ring with finite width
  • Orbital magnetism

ASJC Scopus subject areas

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


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