Embedded curve boundary method for micromagnetic simulations

Abstract The physical and numerical difficulties associated with inadequate boundary resolution in finite differencing applications is alleviated by the embedded curve boundary (ECB) method. The use of this technique in three-dimensional micromagnetic simulations shows more realistic boundary effects on smooth non-rectangular objects without increasing mesh resolution or computational requirements. Results of the new algorithm are presented that show the effect of smooth boundaries on magnetization field determination. A comparison of converged results with other published micromagnetic algorithms are shown for a model reference problem. Additionally, the hysteretic response of submicron-scale cobalt structures is compared with experimental measurements demonstrating the utility of the approach.