Flux pattern instability in a strongly anisotropic type-II superconducting slabE. E. Dvash, I. Shapiro and B. Ya. Shapiro
Department of Physics, Institute of Superconductivity, Bar-Ilan University - Ramat-Gan 52900, Israel
received 21 February 2008; accepted in final form 24 July 2008; published September 2008
published online 9 September 2008
The thermomagnetic stability of the Bean critical state in an anisotropic type-II superconducting slab is studied theoretically. It is predicted that in a strongly anisotropic superconducting slab the non-uniform, fingering-type instability appears as readily as in superconducting films. In particular, the fingering instability emerges for extremely low ramping rates of the external magnetic field.
74.20.De - Phenomenological theories (two-fluid, Ginzburg-Landau, etc.).
74.25.Ha - Magnetic properties.
74.25.Qt - Vortex lattices, flux pinning, flux creep.
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