[ Up ]
[ Home ]
[ Papers ]
[ Bookmarks ]
[ Gallery ]
HMM '99
Adaptive Mesh Micromagnetics of RE Hard Magnets
Institute of Applied and Technical Physics
Vienna University of Technology
Wiedner Hauptstr. 8-10
A-1040 Vienna
Austria
Werner Scholz, Thomas Schrefl, Josef Fidler
June 7th, 1999
Abstract
Micromagnetic calculations of samples with arbitrary geometries or
irregular microstructures are efficiently made using finite element
methods. The accuracy of the solutions depends on the discretisation of
the sample in space. In hard magnetic materials the magnetisation is
uniform within magnetic domains whereas it is highly non-uniform in
domain walls, near nucleation sites, vortices or grain boundaries.
Therefore, it is desirable to adapt the finite element mesh to the
solution and optimise the number of unknowns. As domain walls can move
due to external fields the discretisation has to be adjusted adaptively
during the simulation.
[ Up ]
[ Home ]
[ Papers ]
[ Bookmarks ]
[ Gallery ]
Werner Scholz
6/10/1999