← Back to search

Critical-current fluctuations and flux-flow noise in type-II superconductors

B. Plaçais, P. Mathieu, Y. Simon

DOI 10.1103/PhysRevLett.70.1521 · Physical Review Letters

T1

Active bibliographic source — not scientific approval

Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.

Abstract

By relying on a recent theory of transport in the mixed state and a related model of pinning in soft materials, the instantaneous critical current is introduced as a well-defined part I1 of the total constant current. This nondissipative and time-dependent I1 is assumed to be randomly distributed near the sample surface, and is described as a 2D turbulent homogeneous flow. Auto- and cross-correlation functions of both voltage and magnetic field noises are predicted and are in full agreement with experiments.

Similar papers