Publications by authors named "Yukako Fujishiro"
The coupling of conduction electrons and magnetic textures leads to quantum transport phenomena described by the language of emergent electromagnetic fields. For magnetic skyrmions, spin-swirling particle-like objects, an emergent magnetic field is produced by their topological winding, resulting in the conduction electrons exhibiting the topological Hall effect (THE). When the skyrmion lattice (SkL) acquires a drift velocity under conduction electron flow, an emergent electric field is also generated.
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- - Magnetic skyrmions are intriguing spin structures with unique properties, offering potential uses in nanotechnology, but direct experimental evidence for certain transitions between their structures has been limited
- - Researchers discovered two hybrid skyrmion phases in the polar tetragonal magnet EuNiGe, with different internal textures that blend Bloch- and Néel-type windings
- - By varying the magnetic field, a direct transition occurs between these two phases, involving a transformation from a hexagonal to a square skyrmion crystal, explained through specific complex interactions in the material
The electrical Hall effect can be significantly enhanced through the interplay of the conduction electrons with magnetism, which is known as the anomalous Hall effect (AHE). Whereas the mechanism related to band topology has been intensively studied towards energy efficient electronics, those related to electron scattering have received limited attention. Here we report the observation of giant AHE of electron-scattering origin in a chiral magnet MnGe thin film.
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