Two-Dimensional Gunn Effect

  • L. L. Bonilla
  • R. Escobedo
  • F. J. Higuera
Conference paper
First Online:
Part of the Lecture Notes in Physics book series (LNP, volume 547)

Abstract

Current self-oscillations in semiconductors with a region of negative differential resistivity in their current-field characteristic are known since J. B. Gunn’s early experiments on n-GaAs samples in 1963. Most studied are Gunn self- oscillations in one-dimensional spatial configurations which appear when planar contacts are placed in bulk semiconductor samples: during each period of the current oscillation, a charge dipole wave is triggered at the injecting contact, moves and is annihilated at the receiving contact. Dynamics of planar dipole waves can be surprisingly rich for systems with one-dimensional geometry: besides periodic self- oscillations, under dc voltage bias there may appear period doubling, frequency blocking and intermittency routes to (low-dimensional) chaos.

Keywords

Spatial Configuration Asymptotic Method Circular Disk Period Doubling Planar Contact 
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References

  1. 1.
    B. Willing and J. C. Maan, Phys. Rev. B 49, 13995 (1994). B. Willing, Ph.D. Thesis, University of Nijmegen (1994).CrossRefGoogle Scholar
  2. 2.
    L. L. Bonilla, R. Escobedo, F. J. Higuera (preprint 1999).Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • L. L. Bonilla
    • 1
  • R. Escobedo
    • 1
  • F. J. Higuera
    • 2
  1. 1.E.P.S. de la Universidad Carlos III de MadridLeganésSpain
  2. 2.E.T.S.I. AeronáuticosMadridSpain

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