Dresden 2026 – scientific programme
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MA: Fachverband Magnetismus
MA 16: Skyrmions I
MA 16.6: Talk
Tuesday, March 10, 2026, 10:45–11:00, HSZ/0004
Emergent reactance induced by the deformation of a current-drive skyrmion lattice — •Matthew Littlehales1, 2, Max Birch3, Akiko Kikkawa3, Yasujiro Taguchi3, Diego Alba Venero2, Peter Hatton1, Naoto Nagaosa3, 4, Yoshinori Tokura3, 5, 6, and Tomoyuki Yokouchi3 — 1Department of Physics, Durham University, South Road, Durham, DH1 3LE, UK — 2ISIS Neutron and Muon Source, Rutherford Appleton Laboratory, Didcot, OX11 0QX, UK — 3RIKEN Center for Emergent Matter Science (CEMS), Wako, Japan — 4Fundamental Quantum Science Program (FQSP), TRIP Headquarters, RIKEN, Wako, Japan — 5Department of Applied Physics, University of Tokyo, Tokyo, Japan — 6Tokyo College, University of Tokyo, Tokyo, Japan
Emergent electromagnetism offers an opportunity to develop novel applications by exploiting quantum mechanics. In condensed matter systems, the Berry phase acquired by conduction electrons acts as an emergent electromagnetic field, facilitating phenomena akin to classical electromagnetism. Magnetic skyrmions, spin vortices with non-trivial topology, offer a unique opportunity to investigate emergent electromagnetism. For example, non-trivial transport responses from magnetic skyrmions arise from the emergent Lorentz force and electromagnetic induction. Here, we present two new examples of emergent electric fields arising simultaneously from skyrmion lattice dynamics in MnSi. We find out-of-phase components in the electrical transport, reminiscent of a reactance, and attribute their existence to inertial, and deformative, current-driven skyrmion lattice dynamics.
Keywords: Magnetic Skyrmions; Emergent Electromagnetism; Emergent Induction