Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1820343 | Physica C: Superconductivity and its Applications | 2006 | 4 Pages |
Abstract
To study the shear rigidity of vortex systems, we simulate the radial current driven vortex dynamics in the two-dimensional Corbino disk geometry of type-II superconductors. The radial currents in the disk induce the spatially inhomogeneous Lorentz force, yielding the local shear stress to the vortex lattice. Molecular dynamics simulations of a point vortex model demonstrate that (1) at low currents the vortices rotate as a rigid solid, (2) at large currents the vortices move freely as a liquid, (3) at intermediate currents the complicated plastic slippage of neighboring annular section of the vortex array occurs, and (4) temperature effects enhance the plastic slippage events.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Y. Enomoto, M. Ohta,