Schomburg, E. and Henini, M. and Chamberlain, J. M. and Steenson, D. P. and Brandl, S. and Hofbeck, K. and Renk, Karl F. and Wegscheider, W. (1999) Self-sustained current oscillation above 100 GHz in a GaAs/AlAs superlattice. APPLIED PHYSICS LETTERS, 74 (15). pp. 2179-2181. ISSN 0003-6951,
Full text not available from this repository.Abstract
A GaAs/AlAs superlattice with a large miniband (120 meV) showed self-sustained current oscillation at a frequency of 103 GHz giving rise to microwave emission (power 0.5 mW). The emission line had a linewidth of about 1 MHz and was tuneable by about 800 MHz. An analysis suggests that the transport in the superlattice was mainly due to electrons in the lowest miniband and that the oscillation was caused by traveling dipole domains. We also observed frequency locking of the current oscillation attributed to a synchronization of domain propagation by the external high-frequency field. (C) 1999 American Institute of Physics. [S0003-6951(99)02215-9].
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | WAVE SOURCES; GENERATION; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Karl F. Renk |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 08 Nov 2022 10:01 |
| Last Modified: | 08 Nov 2022 10:01 |
| URI: | https://pred.uni-regensburg.de/id/eprint/48331 |
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