Elastic and plastic properties of the flux-line lattice in type-II superconductors

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Abstract
The present status is reviewed for the elastic and plastic properties of the flux-line lattice in type-II superconductors, which crucially enter the modern theory of collective pinning. In contrast to atomic lattices the flux-line lattice exhibits pronounced elastic nonlocality and the screw dislocation (oriented perpendicular to the flux lines) is strongly anisotropic and can move freely since there is no Peierls potential along the flux lines. General expressions for the interaction between straight or arbitrarily curved flux lines are presented which may be used to compute equilibrium arrangements of flux lines.