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.
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B. Willing and J. C. Maan, Phys. Rev. B 49, 13995 (1994). B. Willing, Ph.D. Thesis, University of Nijmegen (1994).
L. L. Bonilla, R. Escobedo, F. J. Higuera (preprint 1999).
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© 2000 Springer-Verlag Berlin Heidelberg
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Bonilla, L.L., Escobedo, R., Higuera, F.J. (2000). Two-Dimensional Gunn Effect. In: Reguera, D., Rubí, J.M., Platero, G., Bonilla, L.L. (eds) Statistical and Dynamical Aspects of Mesoscopic Systems. Lecture Notes in Physics, vol 547. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45557-4_56
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DOI: https://doi.org/10.1007/3-540-45557-4_56
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