Micromagnetic Simulations of Recording Write Heads - A Comparison of Various Micromagnetic Software

摘要

We compared the performance of three micromagnetic software: (a) originally developed by Hitachi and refined at Kogakuin Univ. and Niigata Institute of Technology, (b) developed by Fujitsu, and (c) Magpar a free, public domain program. We modeled a perpendicular write head to compare the performance of the software. It was found that the finite-difference method based micromagnetic software, (a), had difficulties with complex structures but required less RAM, while finite-element, boundary integral method based micromagnetic software, (b) and (c), could handle complex structures but required more RAM.