Topology dependence of domain wall depinning in magnetic hard-soft composites

摘要

We study the depinning field H-d in magnetic hard-soft nanocomposite by finite-temperature Monte Carlo simulation for two different topologies of the composites: (1) a hard phase in a soft matrix and (2) a soft phase in a hard matrix. We find that the depinning field and maximum energy product is higher in the first case. The temperature and composition dependence of the switching field and maximum energy product is reported. (C) 2003 American Institute of Physics. References: 22