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Proceedings Paper

1/f noise mechanism suppression by periodical destruction of long characteristic times
Author(s): Ilan Ha Bloom
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Paper Abstract

We study the influence of periodical interference pulses on the 1/f fluctuations of variety of systems showing 1/f noise. We show that in some cases, when interference pulses 'reset' the slow evolving 1/f noise mechanism, the magnitude of the noise is suppressed. We demonstrate it on both mechanisms that fluctuate at quasi-equilibrium, as well as on a dynamically driven 1/f noise mechanisms. Furthermore: by using voltage as the interference pulses, we are able to set a new classification for the 1/f noise mechanism in resistive disordered systems. The technique can detect bias dependent current paths rearrangement. Although it is known that in resistive systems the 1/f noise comes from equilibrium local resistance fluctuations that are bias independent, we show that in some such systems, applying different bias changes the set of perculative current paths, resulting in a 1/f noise signature that comes from a new set of local fluctuators.

Paper Details

Date Published: 9 May 2003
PDF: 12 pages
Proc. SPIE 5112, Noise as a Tool for Studying Materials, (9 May 2003); doi: 10.1117/12.488464
Show Author Affiliations
Ilan Ha Bloom, Saifun Semiconductor Ltd. (Israel)

Published in SPIE Proceedings Vol. 5112:
Noise as a Tool for Studying Materials
Michael B. Weissman; Nathan E. Israeloff; A. Shulim Kogan, Editor(s)

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