Research
Material discovery and 3D solitons
We develop models in the junction between atomistic spin dynamics and continuum to better describe materials with functional properties. In particular, we focus on magnetic solitons and textures with topological protection. Our goal is to better predict the properties of magnetic materials needed to stabilize and manipulate such solitons with potential applications in unconventional computing and logic.
Relevant publications
K. Rockwell et al., Phys. Rev. B 109, L180404 (2024).
D. Turenne et al., Science Advances 8, eabn0523 (2022)
D. Zusin et al., Phys. Rev. B 106, 144422 (2022)
Artificial spin ices
Geometric arrays of strongly interacting nanomagnets induce a rich band structure for spin waves, or magnons. More importantly, this band structure is reconfigurable, meaning that it is possible to actively change its features, such as group velocities and band gaps. Our research in artificial spin ices aims to utilize these metamaterials for spin-based information technology, including diodic behavior, non-reciprocity, and topology-protected modes.
Relevant publications
T. Dion et al., Nature Communications 15, 4077 (2024).
G. Alatteili et al., J. Magn. Magn. Mater. 589, 171603 (2023)
S. Gliga, E. Iacocca, and O. G. Heinonen, APL Materials 8, 040911 (2020)
Ultrafast magnetism and spin hydrodynamics
Magnetic materials respond to femtosecond excitation in surprising ways. We investigate these far-from-equilibrium phenomena in magnetism by means of data analysis from experiments performed at free-electron laser facilities as well as numerical simulations. Theoretical analysis relies on spin hydrodynamic description which is applicable at ultrafast scales when dissipation is negligible. Our research focuses on describing both the temporal and spatial evolution of the magnetization to better understand how magnetization evolves, how solitons and topology emerge, and how spin currents transport angular momentum at picosecond timescales.
Relevant publications
R. Jangid at al., Phys. Rev. Lett. 131, 256702 (2023)
E. Iacocca et al., Nature Commun. 10, 1756 (2019)
E. Iacocca, T. J. Silva, and M. A. Hoefer, Phys. Rev. Lett. 118, 017203 (2017)