Combined Langevin dynamics/Monte-Carlo simulations of the non-equilibrium ferrofluid remagnetization

Abstract We present a powerful method for simulations of fast remagnetization processes in ferrofluids which combines the stochastic (Langevin) dynamics and Monte-Carlo method. Our Langevin equations for the description of ferrofluid dynamics include both the mechanical (translational and rotational particle motion) and magnetic (rotation of the magnetic moment with respect to the particle) degrees of freedom. As an application example we present new physical results concerning the dependence of the magnetization relaxation in ferrofluids after switching off the external field.