Search for flicker noise in one-dimensional charge density wave systems

Zbigniew R. Struzik; Andreas Glatz; Mai Suan Li

doi:10.1117/12.547206

25 May 2004 Search for flicker noise in one-dimensional charge density wave systems

Zbigniew R. Struzik, Andreas Glatz, Mai Suan Li

Proceedings Volume 5469, Fluctuations and Noise in Materials; (2004) https://doi.org/10.1117/12.547206
Event: Second International Symposium on Fluctuations and Noise, 2004, Maspalomas, Gran Canaria Island, Spain

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^-γ, 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.

Citation Download Citation

Zbigniew R. Struzik, Andreas Glatz, and Mai Suan Li "Search for flicker noise in one-dimensional charge density wave systems", Proc. SPIE 5469, Fluctuations and Noise in Materials, (25 May 2004); https://doi.org/10.1117/12.547206

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