Ryndyk, D. A. and Demarina, N. V. and Keller, Joachim and Schomburg, E. (2003) Superlattice with hot electron injection: An approach to a Bloch oscillator. PHYSICAL REVIEW B, 67 (3): 033305. ISSN 1098-0121
Full text not available from this repository.Abstract
A semiconductor superlattice with hot electron injection into the miniband is considered. The injection changes the stationary distribution function and results in a qualitative change of the frequency behavior of the differential conductivity. In the regime with Bloch oscillating electrons and injection into the upper part of the miniband the region of negative differential conductivity is shifted from low frequencies to higher frequencies. We find that the dc differential conductivity can be made positive and thus the domain instability can be suppressed. At the same time the high-frequency differential conductivity is negative above the Bloch frequency. This opens another way to make a Bloch oscillator operating at THz frequencies.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SEMICONDUCTOR SUPERLATTICES; CONDUCTIVITY; TRANSPORT; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Alumni or Retired Professors > Group Joachim Keller Physics > Institute of Experimental and Applied Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 25 Aug 2021 10:04 |
| Last Modified: | 25 Aug 2021 10:04 |
| URI: | https://pred.uni-regensburg.de/id/eprint/39357 |
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