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Self-sustained current oscillations in superlattices and the van der Pol equation

Authors Sun, ZZ
Yin, S
Wang, XR
Cao, JP
Wang, YP
Wang, YQ
Issue Date 2005
Source Applied physics letters, v. 87, (18), 2005, OCT 31, article number 182110
Summary The connection between self-sustained current oscillations in superlattices and the famous van der Pol (vdP) equation is established by mapping a widely used model of self-sustained current oscillations to the vdP equation. Since this equation can describe an inductor-capacitor-resistor circuit with a nonlinear resistor of negative differential conductance, we have obtained an equivalent electric circuit for superlattices in the self-sustained current oscillation regime. The origin of the equivalent inductance of a superlattice is revealed. (C) 2005 American Institute of Physics.
ISSN 0003-6951
Rights Applied Physics Letters © 2005 American Institute of Physics. The Journal's web site is located at
Language English
Format Article
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