Phase-locking of vortex lattices interacting with periodic pinning

Journal Article · Mon May 01 04:00:00 EDT 2000 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PhysRevB.61.R11914· OSTI ID:20216418

Reichhardt, Charles ^[1]; Scalettar, Richard T ^[1]; Zimanyi, Gergely T ^[1]; Groenbech-Jensen, Niels ^[2]

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1. Department of Physics, University of California, Davis, California 95616 (United States)
2. Department of Applied Science, University of California, Davis, California 95616 (United States)

We examine Shapiro steps for vortex lattices interacting with periodic 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 remain pinned at the pinning sites. Shapiro steps are observed for fields B{sub {phi}}<B<2.25B{sub {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 ac driving are found to follow a Bessel function in agreement with theory. (c) 2000 The American Physical Society.

• OSTI ID: 20216418
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 18 Vol. 61; ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
JOSEPHSON EFFECT
MAGNETIC FLUX
SUPERCONDUCTIVITY
THEORETICAL DATA
VORTICES