This article is cited in 2 papers

NONLINEAR DYNAMICS

Self-organization and $1/f$ noise in granular superconductors

S. L. Ginzburg, N. E. Savitskaya

B. P. Konstantinov Petersburg Nuclear Physics Institute, Russian Academy of Sciences

Abstract: The interplay between the widespread phenomena such as $1/f$ noise and self-organization of the critical state is studied both theoretically and by computer simulation using a model of multijunction SQUID exposed to an external magnetic field. It is demonstrated that the spectra of the average current in the systems of different size exhibit a broad region of $1/f$ noise limited only by the system size. However, the coexistence of $1/f$ noise and self-organization of the critical state was observed only in one two-dimensional system.

PACS: 64.60.Lx, 74.50.+r

Received: 05.02.2001

 English version: Journal of Experimental and Theoretical Physics Letters, 2001, 73:5, 209–213

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