Microstructure and velocity of fielddriven Ising interfaces moving under a soft stochastic.pdfVIP

Microstructure and velocity of field-driven Ising interfaces moving under a soft stochastic dynamic 3 Per Arne Rikvold1,2,∗ and M. Kolesik3,4,† 0 0 1 2 Center for Materials Research and Technology, School of Computational Science and Information Technology, b and Department of Physics, Florida State University, Tallahassee, Florida 32306-4350 e F 2 Center for Stochastic Processes in Science and Engineering, Department of Physics, 8 1 Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0435 ] 3Institute of Physics, Slovak Academy of Sciences, Bratislava, Slovak Republic h c 4 e Optical Sciences Center, University of Arizona, Tucson, Arizona 85721 m (Dated: February 2, 2008) - t a t We present theoretical and dynamic Monte Carlo simulation results for the mobility and micro- s . t a scopic structure of 1+1-dimensional Ising interfaces moving far from equilibrium in an applied field m under a single-spin-flip “soft” stochastic dynamic. The soft dynamic is characterized by the prop- - d n erty that the effects of changes in field energy and interaction energy factorize in the transition rate, o c in contrast to the nonfactorizing nature of the traditional Glauber and Metropolis rates (“hard” [ dynamics). This work extends our previous studies of the Ising model with a hard dynamic and 1 v the unrestricted SOS model with soft and hard dynamics. [P.