Calculations

In MagTense, a magnetostatic and a micromagnetism calculation framework is available. The basic pipeline for a magnetostatic calculation consists of three parts:

• MagTiles

• Evaluation points

• State function

As result, the three-dimensional H-field vector in the evaluation points is returned.

Examples of how to calculate magnetostatic and micromagnetic problems can be found for Matlab and python.

MagTile

type(MagTile),dimension(n_tiles) :: tiles

MagTiles are the basic structure of MagTense, where n_tiles is the number of given magnetic tiles. They can be specified with several parameters corresponding to the following properties:

• Geometry
  • MagTense Parameters
  • Cylindrical Tile
  • Prism
  • Circular Piece
  • Inverted Circular Piece
  • Tetrahedron
  • Sphere
  • Spheroid
• Magnetization
  • Magnet Type
  • Easy axis and other axes
  • Remanent Magnetization \(M_{rem}\)
  • Magnetization \(M\)
  • State function index
• Other parameters
  • Symmetry Options
  • Include in Iteration
  • Exclude from summation
  • Color

Evaluation points

real,dimension(n_ele,3) :: pts

The three-dimensional evaluation points are defined with respect to the global coordinate system, where n_ele is the number of given points.

State function

type(MagStateFunction),dimension(n_stf) :: stateFunction

The state functions (hysteresis loops) for different materials and temperatures can be given and used if the given MagTile is representing a soft magnet, where n_stf is the number of given state functions.

H-field

real,dimension(n_ele,3) :: H

The three-dimensional H-field is returned in the unit \([A/m]\) and its vector is given with respect to the global coordinate system.