Wednesday, May 1, 2013

1304.8081 (N. Schlömer et al.)

Exploration of stable and unstable vortex patterns in a superconductor
under a magnetic disc

N. Schlömer, M. V. Miloševıć, Bart Partoens, Wim Vanroose
The stable and unstable solutions of a square 2D extreme type-II superconductor are studied in the field of a magnetic disc. We use a preconditioned Newton-Krylov solver to find the solutions and use numerical continuation to track the solutions as the field strength varies. For a disc with a small radius, we have identified generic scenarios through which the state loses and regains its stability.
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