E. Schomburg
Self-sustained current oscillation above 100 GHz in a GaAs/AlAs superlattice
Schomburg, E.; Henini, M.; Chamberlain, J.M.; Steenson, D.P.; Brandl, S.; Hofbeck, K.; Renk, K.F.; Wegscheider, W.
Authors
M. Henini
J.M. Chamberlain
D.P. Steenson
S. Brandl
K. Hofbeck
K.F. Renk
W. Wegscheider
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.
Citation
Schomburg, E., Henini, M., Chamberlain, J., Steenson, D., Brandl, S., Hofbeck, K., …Wegscheider, W. (1999). Self-sustained current oscillation above 100 GHz in a GaAs/AlAs superlattice. Applied Physics Letters, 74(15), 2179-2181. https://doi.org/10.1063/1.123793
Journal Article Type | Article |
---|---|
Publication Date | Apr 12, 1999 |
Deposit Date | Aug 18, 2015 |
Publicly Available Date | Aug 19, 2015 |
Journal | Applied Physics Letters |
Print ISSN | 0003-6951 |
Electronic ISSN | 1077-3118 |
Publisher | American Institute of Physics |
Peer Reviewed | Peer Reviewed |
Volume | 74 |
Issue | 15 |
Pages | 2179-2181 |
DOI | https://doi.org/10.1063/1.123793 |
Public URL | https://durham-repository.worktribe.com/output/1579957 |
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Copyright Statement
© 1999 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters 74, 2179 (1999) and may be found at http://dx.doi.org/10.1063/1.123793
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