Microwave generation by a self-sustained current oscillation in an InGaAs/InAlAs superlattice

Authors
Brandl, S Schomburg, E Scheuerer, R Grenzer, J Renk, KF Pavel'ev, DG Koschurinov, Y Zhukov, A Kovsch, A Ustinov, V Kop'ev, PS
Citation
S. Brandl et al., Microwave generation by a self-sustained current oscillation in an InGaAs/InAlAs superlattice, SUPERLATT M, 25(1-2), 1999, pp. 29-31
Citations number
5
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SUPERLATTICES AND MICROSTRUCTURES
ISSN journal
07496036 → ACNP
Volume
25
Issue
1-2
Year of publication
1999
Pages
29 - 31
Database
ISI
SICI code
0749-6036(199901/02)25:1-2<29:MGBASC>2.0.ZU;2-S
Abstract
We observed a self-sustained current oscillation in an InGaAs/InAlAs superl attice at room temperature. The oscillation gave rise to microwave generati on at a fundamental frequency around 2 GHz and higher harmonics. The power at the first harmonic was 0.1 mW, corresponding to an efficiency (i.e. rati o of microwave power to de power) of 3.5%. We attribute the current oscilla tion to travelling dipole domains. (C) 1999 Academic Press.