Bartel Van Waeyenberge

TL;DR: The design, verification and performance of MUMAX3, an open-source GPU-accelerated micromagnetic simulation program that solves the time- and space dependent magnetization evolution in nano- to micro scale magnets using a finite-difference discretization is reported on.

TL;DR: It is demonstrated experimentally that the unidirectional vortex core reversal process also occurs when such azimuthal modes are excited and is confirmed by micromagnetic simulations, which clearly show the selection rules for this novel reversal mechanism.

TL;DR: In this paper, the authors studied the skyrmion Hall angle as a function of temperature and drive amplitude in ferromagnetic multilayers and provided a complete description of the SkHA in the full range of drive strengths.

TL;DR: In this paper, the effects of spatially varied DMI on the magnetic state in thin ferromagnetic films with perpendicular magnetic anisotropy were investigated and several emergent phenomena, ranging from the equilibrium spin canting at the interface between regions with different DMI, over particularly strong confinement of domain walls and skyrmions within high-DMI tracks, to advanced applications such as domain tailoring nearly at will.

TL;DR: In this paper, the minimum energy path analysis of three distinct mechanisms for the skyrmion collapse is presented, based on ab initio input and the performed atomic-spin simulations, and the authors focus on the stability of a skyrmmion in three atomic layers of Co, either epitaxial on the Pt(111) surface or within a hybrid multilayer where DMI nontrivially varies per monolayer due to competition between different symmetry breaking from two sides of the Co film.