Strong Pinning and Plastic Deformations of the Vortex Lattice

Journal Article · Thu Oct 31 23:00:00 EST 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.77.4636· OSTI ID:399869

Schoenenberger, A; Larkin, A; Heeb, E; Geshkenbein, V; Blatter, G ^[1]

---

1. Theoretische Physik, ETH Hoenggerberg, CH-8093 Zuerich (Switzerland)

We investigate numerically the dynamically generated plastic deformations of a 3D vortex lattice driven through a disorder potential with isolated, strong pinning centers (pointlike or extended along the field direction). We find that the vortex lattice 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 {ital j}{sub {ital c}} and the activation energy for depinning {ital U}{sub {ital c}} in the presence of a finite density of strong pinning centers. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 399869
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 22 Vol. 77; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
DEFECTS
DISORDERED SYSTEMS
DYNAMICS
FLUX-LINE LATTICES
MAGNETIC FLUX
PINNING
PLASTIC DEFORMATION
PLASTICITY
RANDOMNESS
TYPE-II SUPERCONDUCTORS
VORTICES