Flicker-noise spectrum in weak-links-containing superconductors

1999/05/25 by Sergei A. Sergeenkov
Physics and Astronomy · #cond-mat.supr-con #cond-mat.dis-nn

paper · pdf

published as Springer Proceedings in Physics: vol.64, pp.57-60 (1992) · SQUID'91, Berlin, Germany, June 18-21, 1991

arxiv created 1999/05/25 · arxiv updated 2009/11/30

Abstract

Low-frequency magnetic noise spectrum is calculated within the superconductive glass model. The model predicts the existence of both white noise and flicker-like noise f^-z with z strongly dependent on applied magnetic field and temperature. It is shown, in particular, that z increases with field from 0.5 to 1, and that in the critical region (near T_c(H)) the 1/sqrtf law should prevail in the noise spectrum.

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