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Published on Jun 3, 2017
Dynamics of superconducting order parameter in 2D square superconductor at finite temperature. Two boundaries are open and another two are quasi-periodic.
1) At the first stage order parameter relaxes to almost homogeneous steady state in absence of the magnetic field. The noise is a result of Langevin term describing fluctuations due to finite temperature.
2) At the second stage the external magnetic field slowly ramps up to 1% of upper critical field. Magnetic vortices enter superconductor from open boundaries and form Abrikosov lattice with variable density.
Shown is the squared order parameter |ψ|² from two-dimensional time-dependent Ginzburg-Landau (TDGL) simulations.