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Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/1872
Title: A general analysis of instabilities and oscillations of the sequential tunneling in superlattices
Authors: Wang, Xiang-Rong
Niu, Q.
Keywords: Instabilities
Oscillations
Sequential tunneling current
Superlattices
Issue Date: May-1999
Citation: Physical review. B, Condensed matter and materials physics, v. 59, no. 20, May 1999, p. R12755-R12758
Abstract: We present a general analysis of instabilities and oscillations of the sequential tunneling current in superlattices, based on the current-voltage characteristic of a single barrier. Our results depend only on the presence of a negative differential resistance region and are independent of the details of the model. We establish general conditions for the existence of a stable oscillatory region of current-voltage characteristic of the superlattice, and for instability leading to current self-oscillation. Our formalism permits a natural connection to standard results of chaos theory.
Rights: Physical Review B - Condensed Matter and Materials Physics © copyright 1999 American Physical Society. The Journal's web site is located at http://prb.aps.org
URI: http://hdl.handle.net/1783.1/1872
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