J Schlesner et al 2004 Semicond. Sci. Technol. 19 S34 doi:10.1088/0268-1242/19/4/013
J Schlesner1, A Amann1, N Janson1,2, W Just1,3 and E Schöll1
Show affiliationsSemiconductor superlattices driven into the regime of negative differential conductivity often exhibit complex or even chaotic self-sustained current oscillations due to travelling field domains. For a reliable operation of a superlattice as an electronic oscillator, such unpredictable and irregular conditions should be avoided. In this work we present a theoretical analysis, proposing a novel scheme to stabilize high-frequency domain oscillations in semiconductor superlattices by a time-delayed feedback loop.
84.30.Ng Oscillators, pulse generators, and function generators
73.63.-b Electronic transport in nanoscale materials and structures
Issue 4 (April 2004)
Received 28 July 2003
Published 27 February 2004
J Schlesner et al 2004 Semicond. Sci. Technol. 19 S34
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