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 Wang, Xiangrong
Niu, Qian
Issue Date 1999
Source Physical Review B , v. 59, (20), 1999, May, p. R12755-R12758
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.
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ISSN 1098-0121
Rights © 1999 American Physical Society
Language English
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