Universality of the Gunn effect: self-sustained oscillations mediated by solitary waves
L. L. Bonilla, I. R. Cantalapiedra
Abstract
The Gunn effect consists of time-periodic oscillations of the current flowing through an external purely resistive circuit mediated by solitary wave dynamics of the electric field on an attached appropriate semiconductor. By means of a new asymptotic analysis, it is argued that Gunn-like behavior occurs in specific classes of model equations. As an illustration, an example related to the constrained Cahn-Allen equation is analyzed.
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