Phase-locking of vortex lattices interacting with periodic pinning
Journal Article
·
· Physical Review B
OSTI ID:751812
We examine Shapiro steps for vortex lattices interacting with pinning arrays driven by AC and DC currents. The vortex flow occurs by the motion of the interstitial vortices through the periodic potential generated by the vortices that remained pinned at the pinning sites. Shapiro steps are observed for fields B{underscore}phi < B < 2.25 B{underscore}phi with the most pronounced steps occurring for fields where the interstitial vortex lattice has a high degree of symmetry. The widths of the phase-locked current steps as a function of the magnitude of the driving are found to follow a Bessel function in agreement with theory.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Director, Office of Science. Office of Advanced Scientific Computing Research. Mathematical, Information, and Computational Sciences Division
- DOE Contract Number:
- DE-AC03-76SF00098
- OSTI ID:
- 751812
- Report Number(s):
- LBNL-44750; R&D Project: K11503
- Journal Information:
- Physical Review B, Vol. 61, Issue 18
- Country of Publication:
- United States
- Language:
- English
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