Fractal behavior in magnetoconductance in coupled quantum dot systems

Nobuyuki Aoki*, Li Hung Lin, Takahiro Morimoto, Takahiko Sasaki, Jun Feng Song, Koji Ishibashi, Jonathan P. Bird, Agung Budiyono, Katsuhiro Nakamura, Takahisa Harayama, Yuichi Ochiai

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


Fractal behavior in magnetoconductance fluctuations in coupled quantum dots has been studied by means of exact and statistical self-similarity. The fractal dimensions from the different features are not coincident exactly but show the similar gate voltage dependences, where the values increase with increasing negative gate voltage. Moreover, results of statistical fractal dimensions obtained from two types of dot-array samples show the same dependence on the gate voltage variation. It seems a common feature of coupled-dot systems that the fractal dimension increases by decreasing the inter-dot coupling.

Original languageEnglish
Pages (from-to)361-364
Number of pages4
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Issue number1-3
Publication statusPublished - 2004 Apr
Externally publishedYes
Event15th International Conference on ELectronic Propreties - Nara, Japan
Duration: 2003 Jul 142003 Jul 18


  • Conductance fluctuations
  • Coupled quantum dot
  • Dot array
  • Fractal dimension
  • Self similarity

ASJC Scopus subject areas

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


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