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Title: Self-sustained current oscillations in superlattices and the van der Pol equation
Authors: Sun, Zhouzhou
Cao, Junpeng
Yin, S.
Wang, Yupeng
Wang, Y. Q.
Wang, Xiang-Rong
Keywords: Semiconductor superlattics
Current fluctuations
Electrical conductivity
Issue Date: Oct-2005
Citation: Applied physics letters, v. 87, 182110 (2005)
Abstract: The connection between self-sustained current oscillations (SSCOs) in superlattices and the famous van der Pol (vdP) equation is established by mapping a widely used model of SSCOs to the vdP equation. Since this equation can describe an LCR circuit with a nonlinear resistor of negative differential resistance, we have obtained an equivalent electric circuit for superlattices in the SSCO regime. The origin of the equivalent inductance in superlattices is revealed.
Rights: Applied Physics Letters © 2005 American Institute of Physics. The Journal's web site is located at
Appears in Collections:PHYS Journal/Magazine Articles

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