Engineering tunable p-wave magnetism in antiferromagnetic bilayers

@misc{lin2026engineering,
  title = {{Engineering tunable $p$-wave magnetism in antiferromagnetic bilayers}},
  author = {Yu-Han Lin and Jin-Wei Dong and Ziqiang Wang and Sen Zhou},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2609.00277},
  eprint = {2609.00277},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.00277},
}

TY  - UNPB
TI  - Engineering tunable p-wave magnetism in antiferromagnetic bilayers
AU  - Yu-Han Lin
AU  - Jin-Wei Dong
AU  - Ziqiang Wang
AU  - Sen Zhou
PY  - 2026
DA  - 2026/10/20
PB  - arXiv
DO  - 10.48550/arxiv.2609.00277
UR  - https://arxiv.org/abs/2609.00277
AB  - We propose a symmetry-guided route to engineer tunable p-wave magnetism in a bilayer system composed of two AB-stacked antiferromagnetic square lattices with their collinear moments nonparallel to each other. We show that an in-plane relative shift between the two layers selectively breaks the symmetries protecting spin degeneracy while preserving time-reversal-related constraints, thereby generating odd-parity spin splitting in a fully compensated magnetic state without spin-orbit coupling. The direction and the magnitude of the resulting p-wave spin-splitting, together with the associated spin responses, can be continuously tuned by the in-plane displacement, providing a potential knob for control. We further map the bilayer system onto an effective bond-modulated square lattice and investigate the corresponding Hubbard model within a mean-field framework. The calculated phase diagram reveals extended regions where p-wave magnetism with coplanar or chiral spin textures emerges spontaneously. Our results establish a minimal equilibrium platform for realizing and manipulating p-wave magnetism in two-dimensional systems.
ER  -