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http://hdl.handle.net/1783.1/1872
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| 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 |
| Appears in Collections: | PHYS Journal/Magazine Articles
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| article8.pdf | pre-published version | 149Kb | Adobe PDF | View/Open |
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