Dynamical Phase Diagrams for Moving Vortices Interacting with Periodic Pinning

TL;DR

This paper investigates the complex behavior of vortices in superconducting films with periodic pinning, mapping their dynamical phases under various forces, directions, and temperatures through numerical simulations.

Contribution

It introduces detailed dynamical phase diagrams for vortices interacting with periodic pinning, considering force, direction, and temperature effects.

Findings

Identification of distinct dynamical phases based on spatial symmetry

Dependence of phase diagrams on force magnitude and direction

Temperature influences on vortex dynamics and phase transitions

Abstract

The dynamical phase diagrams for vortices in clean films, driven by an uniform force, and interacting with periodic pinning resulting from a columnar-defect lattice are investigated by numerical simulations of a London model, and other considerations. Dynamical phases are identified according to the spatial symmetry, and dynamical phase diagrams are studied as a function of the driving force magnitude and direction, and on the temperature, for typical vortex densities.