Vortex Avalanches in a Type II Superconductor
Abstract
We report on a study of the spatiotemporal variation of magnetic induction in a superconducting niobium sample during a slow sweep of external magnetic field. A sizable fraction of the increase in the local vortex population occurs in abrupt jumps. We compare the size distribution of these avalanches with the predictions of self-organized-criticality models for vortex dynamics.
- Publication:
-
Magnetic and Superconducting Materials
- Pub Date:
- September 2000
- DOI:
- Bibcode:
- 2000mcm..conf..307B