Vortex lattice dynamics in a-NbGe detected by mode-locking experiments

R. Besseling; O. Benningshof; N. Kokubo; P. H. Kes

doi:10.1016/j.physc.2004.03.036

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arXiv · cond-mat/0304046

Vortex lattice dynamics in a-NbGe detected by mode-locking experiments

R. Besseling·O. Benningshof·N. Kokubo·P. H. Kes

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Abstract

We observed mode-locking (ML) of rf-dc driven vortex arrays in a superconducting weak pinning a-NbGe film. The ML voltage shows the expected scaling $V\propto f\sqrt{B}$ with $f$ the rf-frequency and $B$ the magnetic field. For large dc-velocity (corresponding to a large ML frequency), the ML current step width exhibits a squared Bessel function dependence on the rf-amplitude as predicted for ML of a lattice moving elastically through a random potential.

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R. Besseling, O. Benningshof, N. Kokubo, P. H. Kes. 2003-04-02. Vortex lattice dynamics in a-NbGe detected by mode-locking experiments. https://doi.org/10.1016/j.physc.2004.03.036

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