Phase-locking of driven vortex lattices with transverse ac-force and periodic pinning

Details Phase-locking of driven vortex lattices with transverse ac-force and periodic pinning Phase-locking of driven vortex lattices with transverse ac-force and periodic pinning

2001-05-28

arxiv.org/abs/cond-mat/0105526v1

Phys. Rev. B 64, 134508 (2001)

Physics

Condensed Matter

Superconductivity

7 pages, 8 figures, submitted to PRB

Scientific paper

10.1103/PhysRevB.64.134508

For a vortex lattice moving in a periodic array we show analytically and numerically that a new type of phase locking occurs in the presence of a longitudinal dc driving force and a transverse ac driving force. This phase locking is distinct from the Shapiro step phase locking found with longitudinal ac drives. We show that an increase in critical current and a fundamental phase locked step width scale with the square of the driving ac amplitude. Our results should carry over to other systems such as vortex motion in Josephson-junction arrays.

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