Fangohr, H., Bordignon, G., Franchin, M., Knittel, A., de Groot, P.A.J. and Fischbacher, T.
A new approach to (quasi) periodic boundary conditions in micromagnetics: the macro geometry
Journal of Applied Physics, 105, . (doi:10.1063/1.3068637).
We present a new method to simulate repetitive ferromagnetic structures. This macro geometry
approach combines treatment of short-range interactions (i.e. the exchange field) as for periodic
boundary conditions with a specification of the arrangement of copies of the primary simulation cell
n order to correctly include effects of the demagnetizing field. This method (i) solves a consistency
problem that prevents the naive application of 3d periodic boundary conditions in micromagnetism
and (ii) is well suited for the efficient simulation of repetitive systems of any size.
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