ISSN:
1434-6036
Keywords:
72.20.Ht
;
73.40.Kp
;
05.45.+b
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Self-organized spatio-temporal dynamics of electrical transport is described by a simple noncubic activator-inhibitor system derived for layered semiconductor structures. The model exhibits a novel mode of self-sustained oscillations due to current filaments switching on and off (spiking) which may be periodic or chaotic. Additionally, we obtain complex multifilamentary spatio-temporal patterns. As such phenomena have been observed in various devices exhibiting S-shaped negative differential conductivity, our model is suggested to describe a generic mechanism.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01314246
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