English

Symmetry-Enforced Nodal $f$-Wave Magnets

Mesoscale and Nanoscale Physics 2026-03-20 v2 Materials Science Strongly Correlated Electrons

Abstract

Owing to their relevance for spintronics, electronic band splitting and spin-polarization textures in magnets are active areas of research. In non-collinear magnets, alternating spin textures can arise both for isolated bands and for intersecting band pairs with nodal splitting. This raises the question of whether p,f,...p,f,...-wave magnets should be defined by their spin polarization or their band splitting. To resolve this ambiguity, we introduce spin-space symmetries that couple the spin polarization and splitting textures for all bands. Focusing on the nodal ff-wave magnet, we construct a tight-binding model of itinerant electrons on a honeycomb bilayer coupled to a non-collinear magnetic texture. Analytic expressions for spin polarization and splitting reveal the dependence on hopping and exchange coupling. We predict a canting-induced spin conductivity arising from the nodal structure of the splitting. Furthermore, the ff-wave magnet in the bulk can induce pp-wave magnetism on the surface. This surface pp-wave character leads to a bulk-forbidden Edelstein effect with ff-wave anisotropy.

Keywords

Cite

@article{arxiv.2603.17406,
  title  = {Symmetry-Enforced Nodal $f$-Wave Magnets},
  author = {Moritz M. Hirschmann and Akira Furusaki and Max Hirschberger},
  journal= {arXiv preprint arXiv:2603.17406},
  year   = {2026}
}

Comments

8 pages, 5 figures