Abstract
We present a scheme to stabilize high-frequency domain oscillations in semiconductor superlattices by a time-delayed feedback loop. Applying concepts from chaos control theory we propose to control the spatiotemporal dynamics of fronts of accumulation and depletion layers which are generated at the emitter and may collide and annihilate during their transit, and thereby suppress chaos. The proposed method only requires the feedback of internal global electrical variables, viz., current and voltage, which makes the practical implementation very easy.
| Original language | English |
|---|---|
| Article number | 066208 |
| Pages (from-to) | 662081-662085 |
| Number of pages | 5 |
| Journal | Physical Review E |
| Volume | 68 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Dec 2003 |
| Externally published | Yes |