Wave dynamics in two-dimensional samples of n-GaAs with point contacts

We present results of numerical simulations of a two-dimensional Kroemer model for the Gunn effect in samples with different number of point contacts. These results can be interpreted with the help of asymptotic theories for particular geometries: a one-dimensional sample and a Corbino disk (a circu...

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Bibliographic Details
Published in:Chaos, solitons and fractals solitons and fractals, 2003-07, Vol.17 (2), p.283-288
Main Authors: Escobedo, R., Bonilla, L.L.
Format: Article
Language:English
Online Access:Get full text
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Summary:We present results of numerical simulations of a two-dimensional Kroemer model for the Gunn effect in samples with different number of point contacts. These results can be interpreted with the help of asymptotic theories for particular geometries: a one-dimensional sample and a Corbino disk (a circular sample with a point contact at the center surrounded by a metallic contact attached to its boundary). Comments on open problems and possible experimental verification are also made.
ISSN:0960-0779
1873-2887
DOI:10.1016/S0960-0779(02)00353-3