Vortex Dynamics in Percolative Superconductors Containing Fractal Clusters of a Normal Phase

Abstract

The effect of fractal clusters on magnetic and transport properties of percolative superconductors is studied. The superconductor contains percolative superconducting cluster carrying a transport current and clusters of a normal phase. It is found that normal phase clusters have essential fractal features. The fractal dimension of the boundary of normal phase clusters is estimated. The current-voltage characteristics of superconductors containing fractal clusters are obtained. It is found that the fractality of the cluster boundary intensifies pinning. This feature permits to enhance the current-carrying capability of the superconductors.

Report at 2004 International Applied Superconductivity Conference (ASC'2004), Jacksonville, FL, USA, Oct 3-8 (2004); 5 pages, 3 figures, 20 refs

References in corpus (4)

• Fractal geometry of normal phase clusters and magnetic flux trapping in high-Tc superconductors
• Dynamics of the magnetic flux trapped in fractal clusters of normal phase in a superconductor
• Electric field induced by magnetic flux motion in superconductor containing fractal clusters of a normal phase
• Anomalous statistical properties of the critical current distribution in superconductor containing fractal clusters of a normal phase