Thermally activated interface motion in a disordered ferromagnet
We investigate interface motion in disordered ferromagnets by means of Monte Carlo simulations. For small temperatures and driving fields a so-called creep regime is found and the, interface velocity obeys an Arrhenius law. We analyze the corresponding energy barrier as well as the field and temperature dependence of the prefactor. (C) 2001 Elsevier Science B.V. All rights reserved.
disordered media driven interfaces creep motion