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

Schomburg, Ekkehard and Henini, M. and Chamberlain, J. M. and Steenson, D. P. and Brandl, S. and Hofbeck, K. and Renk, Karl Friedrich and Wegscheider, Werner (1999) Self-sustained current oscillation above 100 GHz in a GaAs/AlAs superlattice. Applied Physics Letters 74 (15), pp. 2179-2181.

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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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Item Type:Article
Date:12 April 1999
Institutions:Physics > Institute of Experimental and Applied Physics > Retired Professors > Group Werner Wegscheider
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Subjects:500 Science > 530 Physics
Created at the University of Regensburg:Unknown
Deposited On:09 Nov 2009 13:32
Last Modified:13 Mar 2014 12:03
Item ID:10889
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