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Unified model of fractal conductance fluctuations for diffusive and ballistic semiconductor devices

Författare:
  • C. A. Marlow
  • R. P. Taylor
  • T. P. Martin
  • B. C. Scannell
  • H. Linke
  • M. S. Fairbanks
  • G. D. R. Hall
  • I. Shorubalko
  • Lars Samuelson
  • T. M. Fromhold
  • C. V. Brown
  • B. Hackens
  • S. Faniel
  • C. Gustin
  • V. Bayot
  • X. Wallart
  • S. Bollaert
  • A. Cappy
Publiceringsår: 2006
Språk: Engelska
Sidor:
Publikation/Tidskrift/Serie: Physical Review B
Volym: 73
Nummer: 19
Dokumenttyp: Artikel
Förlag: American Physical Society

Sammanfattning

We present an experimental comparison of magnetoconductance fluctuations measured in the ballistic, quasiballistic, and diffusive scattering regimes of semiconductor devices. In contradiction to expectations, we show that the spectral content of the magnetoconductance fluctuations exhibits an identical fractal behavior for these scattering regimes and that this behavior is remarkably insensitive to device boundary properties. We propose a unified model of fractal conductance fluctuations in the ballistic, quasiballistic, and diffusive transport regimes, in which the generic fractal behavior is generated by a subtle interplay between boundary and material-induced chaotic scattering events.

Disputation

Nyckelord

  • Physics and Astronomy

Övriga

Published
Yes
  • ISSN: 1098-0121

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