35 citations · 51 across the 15 of their papers we have counts for
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Effect of interaction range on the phase diagram of magnetic hedgehog lattices
Midori Yamada, Kotaro Shimizu, Shun Okumura +2
Topological spin textures have attracted considerable attention through their emergent electromagnetic properties, including the topological Hall effect and the topological Nernst…
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,…
Floquet-Weyl states at one-photon resonances in three-dimensional topological insulators
Keiya Uehara, Ryo Okugawa, Takami Tohyama +1
Quantum materials exhibit exotic phases and electronic responses under irradiation by circularly polarized light, which breaks time-reversal symmetry and generates Floquet replica…
Creating and Driving a Twist Soliton on a Magnetic Skyrmion Tube
Shoya Kasai, Kotaro Shimizu, Shun Okumura +1
A magnetic skyrmion tube is a three-dimensional topological soliton formed by stacking two-dimensional skyrmions along the out-of-plane direction. Recent real-space observations of…
Magnetoelastic mapping of the high-field phase diagram in the topological cubic helimagnet SrFeO
Masaki Gen, Shun Okumura, Shusaku Imajo +9
The cubic perovskite SrFeO is a prototypical centrosymmetric itinerant magnet that hosts a quadruple- hedgehog-antihedgehog lattice and exhibits a complex magnet…
Spin current generation via magnetic skyrmion, bimeron, and meron crystals
Aoi Kajihara, Shun Okumura, Yukitoshi Motome
Spin current offers a promising route toward energy-efficient and high-speed information processing. Developing efficient methods for their generation remains a central challenge i…
Emergent electric field induced by dissipative sliding dynamics of domain walls in a Weyl magnet
Rinsuke Yamada, Daichi Kurebayashi, Yukako Fujishiro +10
The dynamic motion of topological defects in magnets induces an emergent electric field, as exemplified by the continuous flow of skyrmion vortices. However, the electrodynamics un…