Dynamical fluctuations in mode locking experiments on vortices moving through mesoscopic channels

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

doi:10.1016/j.physc.2004.03.032

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Dynamical fluctuations in mode locking experiments on vortices moving through mesoscopic channels

N Kokubo·R. Besseling·P. H. Kes

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Abstract

We have studied the flow properties of vortices driven through easy flow mesoscopic channels by means of the mode locking (ML) technique. We observe a ML jump with large voltage broadening in the real part of the rf-impedance. Upon approaching the pure dc flow by reducing the rf amplitude, the ML jump is smeared out via a divergence of the voltage width. This indicates a large spread in internal frequencies and lack of temporal coherence in the dc-driven state.

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N Kokubo, R. Besseling, P. H. Kes. 2003-08-19. Dynamical fluctuations in mode locking experiments on vortices moving through mesoscopic channels. https://doi.org/10.1016/j.physc.2004.03.032

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