Self-sustained current oscillation above 100 GHz in a GaAs/AlAs superlattice

DOI zum Zitieren dieses Dokuments:: 10.5283/epub.10889

Schomburg, Ekkehard ; Henini, M. ; Chamberlain, J. M. ; Steenson, D. P. ; Brandl, S. ; Hofbeck, K. ; Renk, Karl Friedrich ; Wegscheider, Werner

PDF
(77kB) - Nur für Mitarbeiter des Archivs

Veröffentlichungsdatum dieses Volltextes: 09 Nov 2009 13:32

Alternative Links zum Volltext:DOI

Details

Bibliographische Daten exportieren

Zusammenfassung

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 ...