The stray- and demagnetizing field from a homogeneously magnetized tetrahedron

Abstract

The stray- and demagnetization tensor field for a homogeneously magnetized tetrahedron is found analytically. The tetrahedron is a special case of four triangular faces with constant magnetization-charge surface density, for which we also determine the tensor field. The tensor field is implemented in the open source micromagnetic and magnetostatic simulation framework MagTense and compared with the obtained magnetic field from an FEM solution, showing excellent agreement. This result is important for modeling magnetostatics in general and for micromagnetism in particular as the demagnetizing field of an arbitrary body discretized using conventional meshing techniques is significantly simplified with this approach.

5 pages, 4 figures

References in corpus (1)

• Demagnetization factor for a powder of randomly packed spherical particles

Cited by in corpus (3)

• MagTense: a micromagnetic framework using the analytical demagnetization tensor
• Efficient calculation of magnetic fields from ferromagnetic materials near strong electromagnets, and application to stellarator coil optimization
• The magnetic scalar potential and demagnetization vector for a cylinder tile