Oscillations and Chaotic Current Fluctuations in n-GaAs

URN to cite this document:: urn:nbn:de:bvb:355-epub-174864
DOI to cite this document:: 10.5283/epub.17486

Brandl, A. ; Geisel, T. ; Prettl, Wilhelm

Preview

PDF
(494kB)

Date of publication of this fulltext: 26 Oct 2010 12:04

Alternative links to fulltext:DOI

Details

Preview

Export bibliographical data

Abstract

Chaotic current fuctuations have been observed in the negative differential conductivity region of n-GaAs at 4.2 K under static external conditions. Power spectra, Poincaré sections and the fractal dimension of the attractor were determined as functions of the applied voltage for various magnetic-field strengths B. For B = 0 only limit cycles were observed. For B > 0 our results indicate ...