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Sequence of different types of nonlinear current oscillation in n-GaAs

URN to cite this document:
urn:nbn:de:bvb:355-epub-173519
Spangler, J. ; Brandl, Andreas ; Prettl, Wilhelm
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Date of publication of this fulltext: 18 Oct 2010 11:59


Abstract

Self-generated chaotic current fluctuations in the post-breakdown regime of a n-GaAs layer at 4.2 K have been analyzed in detail. Without an external magnetic field only regular oscillations were observed. Increasing the magnetic field strength up to 100 mT generates a sequence of quasiperiodic and frequency-locking current oscillations and finally a Ruelle-Takens-Newhouse scenario with chaos. ...

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