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Issue
EPL
Volume 83, Number 6, September 2008
Article Number 67005
Number of page(s) 5
Section Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties
DOI http://dx.doi.org/10.1209/0295-5075/83/67005
Published online 09 September 2008
EPL, 83 (2008) 67005
DOI: 10.1209/0295-5075/83/67005

Flux pattern instability in a strongly anisotropic type-II superconducting slab

E. E. Dvash, I. Shapiro and B. Ya. Shapiro

Department of Physics, Institute of Superconductivity, Bar-Ilan University - Ramat-Gan 52900, Israel

shapib@mail.biu.ac.il

received 21 February 2008; accepted in final form 24 July 2008; published September 2008
published online 9 September 2008

Abstract
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.

PACS
74.20.De - Phenomenological theories (two-fluid, Ginzburg-Landau, etc.).
74.25.Ha - Magnetic properties.
74.25.Qt - Vortex lattices, flux pinning, flux creep.

© EPLA 2008