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Strong Pinning and Plastic Deformations of the Vortex Lattice

A. Schönenberger·A. Larkin·E. Heeb·V. Geshkenbein·G. Blatter
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Abstract

We investigate numerically the dynamically generated plastic deformations of a 3D vortex lattice (VL) driven through a disorder potential with isolated, strong pinning centers (point-like or extended along the field direction). We find that the VL exhibits a very peculiar dynamical behavior in the plastic flow regime, in particular, topological excitations consisting of three or four entangled vortices are formed. We determine the critical current density $j_c$ and the activation energy for depinning $U_c$ in the presence of a finite density of strong pinning centers.

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BibTeXRIS

A. Schönenberger, A. Larkin, E. Heeb, V. Geshkenbein, G. Blatter. 1996-07-26. Strong Pinning and Plastic Deformations of the Vortex Lattice. https://doi.org/10.1103/physrevlett.77.4636

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