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MA: Fachverband Magnetismus
MA 20: Altermagnets III
MA 20.6: Vortrag
Dienstag, 10. März 2026, 15:15–15:30, HSZ/0002
Unique responses in odd-parity nodal p-wave magnets — •Atasi Chakraborty1, Anna Birk Hellenes1, Rodrigo Jaeschke Ubiergo1, Tomas Jungwirth2,3, Libor Šmejkal2,4, and Jairo Sinova1,5 — 1Institut für Physik, Johannes Gutenberg Universität Mainz — 2Institute of Physics, Academy of Sciences of the Czech Republic — 3School of Physics and Astronomy, University of Nottingham — 4Max Planck Institute for the Physics of Complex Systems,Dresden — 5Department of Physics, Texas A & M University
The recent discovery of Altermagnetism -- spin-split even-parity compensated magnets -- highlights how spin symmetries can reveal exchange-driven phenomena that has previously been overlooked. Building on this insight, we explore spin symmetry criteria [1,3] to identify the odd-parity magnetic states in noncollinear systems, focusing on effects driven purely by exchange interactions, independent of spin-orbit coupling. In this talk, I will focus on the lowest-order (pwave) nodal odd-parity magnets, and discuss their characteristic responses [1, 2]. We show that these p-wave magnetic phases spontaneously break crystal symmetries, leading to pronounced exchange-mediated resistive anisotropy [1] and exhibit a large, purely non-relativistic, anisotropic out-of-plane charge-to-spin conversion [2], fundamentally distinct from the conventional Rashba-Edelstein effect.
1. Hellenes, Jungwirth, Ubiergo, Chakraborty, Sinova, Šmejkal, arXiv:2309.01607v3 (2020). 2. Chakraborty, Hellenes, Ubiergo, Jungwirth, Šmejkal, Sinova, Nature Communications 16, 7270 (2025). 3. Jungwirth, Fernandes, Sinova, Šmejkal, arXiv:2409.10034v1 (2024)
Keywords: Odd-parity magnets; p-wave magnetism; Non-relativistic response; Edelstein effect; Giant anisotropic conductance