Scheuerer, Roland and Renk, Karl F. and Schomburg, E. and Wegscheider, Werner and Bichler, M. (2002) Nonlinear superlattice transport limited by Joule heating. JOURNAL OF APPLIED PHYSICS, 92 (10). pp. 6043-6046. ISSN 0021-8979
Full text not available from this repository.Abstract
We studied the effects caused by Joule heating in GaAs/AlAs superlattices. We measured the current-voltage characteristics of superlattice mesas of different cross sections. Each current-voltage characteristic showed a corresponding peak current followed by a region of negative differential conductivity, according to miniband transport in the superlattice. We found that Joule heating in the mesa reduced the peak-current density. Current jumps in the region of negative differential conductivity disappeared for large cross-section mesas indicating a suppression of electron domains. The results are of significance for the development of high-power superlattice oscillators for submillimeter radiation. (C) 2002 American Institute of Physics.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | INP GUNN DEVICES; SUSTAINED CURRENT OSCILLATION; PERFORMANCE; GENERATION; GHZ; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Karl F. Renk Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Werner Wegscheider |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 26 Aug 2021 11:53 |
| Last Modified: | 26 Aug 2021 11:53 |
| URI: | https://pred.uni-regensburg.de/id/eprint/39665 |
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