Chaos in resonant-tunneling superlattices
Open Access
- 15 September 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 52 (11) , 7849-7852
- https://doi.org/10.1103/physrevb.52.7849
Abstract
Spatiotemporal chaos is predicted to occur in n-doped semiconductor superlattices with sequential resonant tunneling as their main charge transport mechanism. Under dc voltage bias, undamped time-dependent oscillations of the current (due to the motion and recycling of electric field domain walls) have been observed in recent experiments. Chaos is the result of forcing this natural oscillation by means of an appropriate external microwave signal.Keywords
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