Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/1872

General analysis of instabilities and oscillations of the sequential tunneling in superlattices

Authors X. R. Wang
Q. Niu
Issue Date 1999
Source Physical Review B, v. 59, (20), May 1999
Summary 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.
Subjects
ISSN 1098-0121
Rights © 1999 American Physical Society
Language English
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