Finite difference magnetoelastic simulator

Frederic Vanderveken; Jeroen Mulkers; Jonathan Leliaert; Bartel Van Waeyenberge; Bart Sorée; Odysseas Zografos; Florin Ciubotaru; Christoph Adelmann

doi:10.12688/openreseurope.13302.1

Finite difference magnetoelastic simulator

Open Res Eur. 2021 Apr 19:1:35. doi: 10.12688/openreseurope.13302.1. eCollection 2021.

Authors

Frederic Vanderveken^{1

2}, Jeroen Mulkers³, Jonathan Leliaert³, Bartel Van Waeyenberge³, Bart Sorée^{1

4

5}, Odysseas Zografos¹, Florin Ciubotaru¹, Christoph Adelmann¹

Affiliations

¹ Imec, Leuven, 3001, Belgium.
² Departement Materiaalkunde, SIEM, KU Leuven, Leuven, 3001, Belgium.
³ Departement Vastestofwetenschappen, DyNaMat, Universiteit Gent, Gent, 9000, Belgium.
⁴ Departement Elektrotechniek, TELEMIC, KU Leuven, Leuven, 3001, Belgium.
⁵ Departement Fysica, Universiteit Antwerpen, Antwerpen, 2000, Belgium.

Abstract

We describe an extension of the micromagnetic finite difference simulation software MuMax3 to solve elasto-magneto-dynamical problems. The new module allows for numerical simulations of magnetization and displacement dynamics in magnetostrictive materials and structures, including both direct and inverse magnetostriction. The theoretical background is introduced, and the implementation of the extension is discussed. The magnetoelastic extension of MuMax3 is freely available under the GNU General Public License v3.

Keywords: finite differences; magnetoelasticity; magnetoelectricity; micromagnetics.

Grants and funding

Imec's contribution to this work was financially supported by the European Union’s Horizon 2020 research and innovation programme under the grant agreement No 801055 (project CHIRON). F.V. acknowledges financial support from the Research Foundation -- Flanders (FWO) through grant No.~1S05719N. J.L. is supported by the Research Foundation -- Flanders (FWO) through a postdoctoral fellowship. The authors acknowledge additional support from Imec’s industrial affiliate program on beyond-CMOS logic.