Tuning Ginzburg–Landau theory to quantitatively study thin ferromagnetic materials

Along with experiments, numerical simulations are key to gaining insight into the underlying mechanisms governing domain wall motion in thin ferromagnetic systems. However, a direct comparison between simulation of model systems and experimental results still represents great challenge. Here, we present tuned Ginzburg-Landau quantitatively study dynamics walls quasi two-dimensional perpendicular magnetic anisotropy. This incorporates material parameters micromagnetic prescription for thermal fluctuations, allowing us perform material-specific at same time recover universal features. We show that our reproduces previous velocity-field data archetypal anisotropy Pt/Co/Pt ultra-thin films three dynamical regimes (creep, depinning flow). In addition, statistical analysis width parameter, showing can provide detailed nano-scale information while retaining complex behavior disordered model.