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Experimental evidence of a change of exchange anisotropy sign with temperature in Zn-substituted Cu2OSeO3 (2021)
Journal Article
Moody, S., Nielsen, P., Wilson, M., Venero, D. A., Štefančič, A., Balakrishnan, G., & Hatton, P. (2021). Experimental evidence of a change of exchange anisotropy sign with temperature in Zn-substituted Cu2OSeO3. Physical Review Research, 3(4), Article 043149. https://doi.org/10.1103/physrevresearch.3.043149

We report small-angle neutron scattering from the conical state in a single crystal of Zn-substituted Cu 2 OSeO 3 . Using a 3D vector-field magnet to reorient the conical wave vector, our measurements show that the magnitude of the conical wave vecto... Read More about Experimental evidence of a change of exchange anisotropy sign with temperature in Zn-substituted Cu2OSeO3.

Topological defect-mediated skyrmion annihilation in three dimensions (2021)
Journal Article
Birch, M. T., Cortés-Ortuño, D., Khanh, N. D., Seki, S., Štefančič, A., Balakrishnan, G., …Hatton, P. D. (2021). Topological defect-mediated skyrmion annihilation in three dimensions. Communications Physics, 4(1), https://doi.org/10.1038/s42005-021-00675-4

The creation and annihilation of magnetic skyrmions are mediated by three-dimensional topological defects known as Bloch points. Investigation of such dynamical processes is important both for understanding the emergence of exotic topological spin te... Read More about Topological defect-mediated skyrmion annihilation in three dimensions.

Deriving the skyrmion Hall angle from skyrmion lattice dynamics (2021)
Journal Article
Brearton, R., Turnbull, L., Verezhak, J., Balakrishnan, G., Hatton, P., van der Laan, G., & Hesjedal, T. (2021). Deriving the skyrmion Hall angle from skyrmion lattice dynamics. Nature Communications, 12(1), Article 2723. https://doi.org/10.1038/s41467-021-22857-y

Magnetic skyrmions are topologically non-trivial, swirling magnetization textures that form lattices in helimagnetic materials. These magnetic nanoparticles show promise as high efficiency next-generation information carriers, with dynamics that are... Read More about Deriving the skyrmion Hall angle from skyrmion lattice dynamics.