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Effects of Columnar Pins on Flux Line Dynamics

Seungoh Ryu·A. Kapitulnik·S. Doniach
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Abstract

The effects of columnar pins on the flux lines in a model High-Tc superconductor in an applied field are studied through Monte Carlo simulations. An analytic solution for a single line case is obtained and compared with the simulation results. By introducing a tilted potential, we study simulated ``IV" characteristics and the results indicate a distinct scaling behavior above and below the depinning temperature. We introduce a diverging length scale measured in terms of a ``retrapping length'' to analyze self-similar behavior across the depinning transition.

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Seungoh Ryu, A. Kapitulnik, S. Doniach. 1993-10-05. Effects of Columnar Pins on Flux Line Dynamics. https://doi.org/10.1103/physrevlett.71.4245

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