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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
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