M. Maicas et al., MAGNETOSTATIC ENERGY CALCULATIONS IN 2-DIMENSIONAL AND 3-DIMENSIONAL ARRAYS OF FERROMAGNETIC PRISMS, IEEE transactions on magnetics, 34(3), 1998, pp. 601-607
Exact analytic expressions for magnetostatic energy calculations in ar
rays of ferromagnetic prisms are presented. They apply to two-dimensio
nal (2-D) and three-dimensional (3-D) arrays of variable length prisms
with uniform magnetization inside each prism. This permits the study
of irregular magnetic structures allowing also a variable grid where t
he size of the cells depends on the structure itself. These expression
s cover all possible cases for 2-D and 3-D problems.