Gliding dislocations in a driven vortex lattice

Details Gliding dislocations in a driven vortex lattice Gliding dislocations in a driven vortex lattice

1997-02-02

arxiv.org/abs/cond-mat/9702014v1

Phys. Rev. B 56, 8522 (1997)

Physics

Condensed Matter

Superconductivity

4 pages Revtex

Scientific paper

10.1103/PhysRevB.56.R8522

The dynamics of dislocations in a two-dimensional vortex lattice is studied in the presence of a pinning potential and a transport current. In a vortex lattice drifting with velocity $v$ a glide velocity $V_d$ of the dislocation with respect to the vortex lattice is found to decay like $V_d \sim v^{-4}$ for large drive. From this result the velocity for the crossover between a regime of coherent elastic motion and a regime of incoherent plastic motion of vortices is estimated.

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