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Effect of Grain Geometry on Angle of Repose and Dynamics
C. J. Olson, C. Reichhardt, M. McCloskey +1
With simulation and experiment we examine the effect of grain anisotropy on the angle of repose in a two-dimensional geometry. We find that the structure of the granular packing ca…
Complex Dynamical Flow Phases and Pinning in Superconductors with Rectangular Pinning Arrays
C. Reichhardt, G. T. Zimanyi, N. Gronbech-Jensen
We examine vortex pinning and dynamics in thin-film superconductors interacting with square and rectangular pinning arrays for varied vortex densities including densities significa…
Critical depinning force and vortex lattice order in disordered superconductors
C. J. Olson, C. Reichhardt, S. Bhattacharya
We simulate the ordering of vortices and its effects on the critical current in superconductors with varied vortex-vortex interaction strength and varied pinning strengths for a tw…
Hysteretic depinning and dynamical melting for magnetically interacting vortices in disordered layered superconductors
C. J. Olson, C. Reichhardt, V. M. Vinokur
We examine the depinning transitions and the temperature versus driving force phase diagram for magnetically interacting pancake vortices in layered superconductors. For strong dis…
Disordering Transitions in Vortex Matter: Peak Effect and Phase Diagram
C. J. Olson, C. Reichhardt, R. T. Scalettar +2
Using numerical simulations of magnetically interacting vortices in disordered layered superconductors we obtain the static vortex phase diagram as a function of magnetic field and…
Critical Currents and Vortex States at Fractional Matching Fields in Superconductors with Periodic Pinning
Charles Reichhardt, Niels Gronbech-Jensen
We study vortex states and dynamics in 2D superconductors with periodic pinning at fractional sub-matching fields using numerical simulations. For square pinning arrays we show tha…