Surface Instabilities and Plastic Deformation of Vortex Lattices
- Bar Ilan University, Ramat Gan 52900 (Israel)
We investigate the stability of the vortex configuration in thin superconducting strips under an applied current analytically and by numerical simulations of the time-dependent Ginzburg-Landau equation. We show that the stationary vortex lattice becomes unstable with respect to long-wavelength perturbations above some critical current {ital I}{sub {ital c}}. We find that at currents slightly exceeding {ital I}{sub {ital c}} the vortex phase develops plastic flow, where large coherent pieces of the lattice are separated by lines of defects and slide with respect to each other (ice-floe-like motion). At elevated current a transition to elastic flow is observed. {copyright} {ital 1996 The American Physical Society.}
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 388365
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 15 Vol. 77; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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