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Periodic boundary conditions for demagnetization interactions in micromagnetic simulations
- Publication Year :
- 2008
-
Abstract
- A new method for the introduction of periodic boundary conditions to the self-magnetostatic (demagnetization) tenn in micromagnetic simulations is described, using an Ewald-like summation method in real space. The long-range character of the dipolar interactions is included without any distance cut-offs. The accumulated errors are carefully monitored to provide easy control of the quality of the results. This allows the calculations to be either accurate up to floating point limitations or less precise when computational speed requirements dominate. This method is incorporated into a full micro magnetic program, and comparisons are made to analytic results.
- Subjects :
- Physics
Floating point
Acoustics and Ultrasonics
Demagnetizing field
Mechanics
Condensed Matter Physics
Space (mathematics)
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Term (time)
Condensed Matter::Materials Science
Dipole
Classical mechanics
Quality (physics)
Periodic boundary conditions
ddc:530
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....76d9e510089bdefea4970c8e0d2ae2c2