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Proceedings Paper

Search for flicker noise in one-dimensional charge density wave systems
Author(s): Zbigniew R. Struzik; Andreas Glatz; Mai Suan Li
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Paper Abstract

The noise of the current of a driven classical one-dimensional charge density wave system is studied in the weak pinning regime using the overdamped equation of motion and the Wavelet Transform Modulus Maxima method. Above the zero temperature depinning transition at low temperatures, the power spectrum of the current noise S(f) scales with frequency f as S(f) ~ f, where γ≈1, which suggests the existence of flicker. Experimental measurements for quasi-one-dimensional charge density wave materials are in agreement with our findings, providing the first evidence of 1/f behaviour obtained from first principles.

Paper Details

Date Published: 25 May 2004
PDF: 9 pages
Proc. SPIE 5469, Fluctuations and Noise in Materials, (25 May 2004); doi: 10.1117/12.547206
Show Author Affiliations
Zbigniew R. Struzik, Univ. of Tokyo (Japan)
PRESTO, Japan Science and Technology Corp. (Japan)
Andreas Glatz, Univ. zu Koln (Germany)
Argonne National Lab. (United States)
Mai Suan Li, Institute of Physics (Poland)

Published in SPIE Proceedings Vol. 5469:
Fluctuations and Noise in Materials
Dragana Popovic; Michael B. Weissman; Zoltan A. Racz, Editor(s)

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