4 papers
Weaving Hopfions from Emergent Monopoles in a Chiral Magnet
Shoya Kasai, Kotaro Shimizu, Shun Okumura +1
Recent advances in three-dimensional magnetization imaging techniques have opened new avenues for exploring topological spin textures beyond domain walls and skyrmions. Among them,…
Three-dimensional Topological Superstructure of Magnetic Hopfions Threaded by Meron Strings in Easy-plane Magnets
Shoya Kasai, Kotaro Shimizu, Shun Okumura +2
Topological spin textures exhibit a hierarchical nature. For instance, magnetic skyrmions, which possess a particle-like nature, can aggregate to form superstructures such as skyrm…
Soliton penetration from edges in a monoaxial chiral magnet
Kotaro Shimizu, Shun Okumura, Yasuyuki Kato +1
The magnetic solitons such as chiral solitons, magnetic skyrmions, and magnetic hopfions, exhibiting particlelike nature widely emerge in magnets depending on spatial dimension. As…
Current-induced motion of nanoscale magnetic torons over the wide range of the Hall angle
Kotaro Shimizu, Shun Okumura, Yasuyuki Kato +1
Current-driven dynamics of spin textures plays a pivotal role in potential applications for electronic devices. While two-dimensional magnetic skyrmions with topologically nontrivi…