Dresden 2026 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 54: Altermagnets VI
MA 54.10: Vortrag
Freitag, 13. März 2026, 12:00–12:15, HSZ/0002
P-wave magnetism with helical order — •Jaafar Ansari1 and Libor Šmejkal1,2,3 — 1Max Planck Institute for the Physics of Complex Systems, Dresden, Germany — 2Max Planck Institute for Chemical Physics of Solids, Dresden, Germany — 3Institute of Physics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
The emergent class of magnetic materials exhibiting p-wave [1] spin polarization represents a critical frontier in condensed matter physics for holding considerable promise for advanced spintronic architectures. Examples have been studied in commensurate and incommensurate p-wave structures with asymmetric spin polarizations [2-4]. This work presents a systematic theoretical classification of systems capable of realizing this unique band-structure symmetry, which is rooted in spin group theory. Our study focuses on helimagnets that do and do not generate p-wave order. By ab initio calculations we investigate the role played by broken inversion symmetry, noncollinearity of the spins, and the robustness of the p-wave polarisation against spin-orbit interaction. Our analysis characterizes the conditions under which the nominal p-wave symmetry is maintained, partially suppressed or entirely lost, and identifies material candidates. [1] Hellenes, A. B., et. al, arXiv.2309.01607 (2023), [2] Chakraborty, A., et al., Nat Commun 16, 7270 (2025), [3] Kim, S.-J, et. al., Adv. Sci. 11, 2307306 (2024), [4] Alvarez, N., Phys. Rev. B 112, 024404 (2025)
Keywords: p-wave magnets; antialtermagnets; magnetism