Schomburg, Ekkehard, Henini, M., Chamberlain, J. M., Steenson, D. P., Brandl, S., Hofbeck, K., Renk, Karl Friedrich und Wegscheider, Werner
Self-sustained current oscillation above 100 GHz in a GaAs/AlAs superlattice.
Applied Physics Letters 74 (15), S. 2179-2181.
Zum Artikel beim Verlag (über DOI)
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 ...
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