Nonlinear Magnon Magnetic Moment Transport in Triangular-Lattice f-Wave Antialtermagnets
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866914588392423424 |
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| author | Kravchuk, Volodymyr P. Yershov, Kostiantyn V. Pradenas, Bastián Neumann, Robin R. Jaeschke-Ubiergo, Rodrigo Zarzuela, Ricardo Sinova, Jairo Brink, Jeroen van den Mook, Alexander |
| author_facet | Kravchuk, Volodymyr P. Yershov, Kostiantyn V. Pradenas, Bastián Neumann, Robin R. Jaeschke-Ubiergo, Rodrigo Zarzuela, Ricardo Sinova, Jairo Brink, Jeroen van den Mook, Alexander |
| contents | We study the spin excitations in the frustrated coplanar 120-degree ground state of the triangular-lattice Heisenberg antiferromagnet and demonstrate that they carry a magnetic moment perpendicular to the plane in which the spins order, despite the ground-state sublattice moments having no out-of-plane component. The symmetry of the momentum dependence of the magnetic moment and energy of the magnons renders the system an odd-parity f-wave magnet. Extending this model to a stack of antiferromagnetically coupled triangular layers provides a realization of magnons in a three-dimensional f-wave antialtermagnet. We show that nonlinear thermal transport effects of magnons, such as Edelstein and spin-splitter effects, provide clear experimental signatures of magnons in f-wave antialtermagnets. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2605_22614 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Nonlinear Magnon Magnetic Moment Transport in Triangular-Lattice f-Wave Antialtermagnets Kravchuk, Volodymyr P. Yershov, Kostiantyn V. Pradenas, Bastián Neumann, Robin R. Jaeschke-Ubiergo, Rodrigo Zarzuela, Ricardo Sinova, Jairo Brink, Jeroen van den Mook, Alexander Strongly Correlated Electrons We study the spin excitations in the frustrated coplanar 120-degree ground state of the triangular-lattice Heisenberg antiferromagnet and demonstrate that they carry a magnetic moment perpendicular to the plane in which the spins order, despite the ground-state sublattice moments having no out-of-plane component. The symmetry of the momentum dependence of the magnetic moment and energy of the magnons renders the system an odd-parity f-wave magnet. Extending this model to a stack of antiferromagnetically coupled triangular layers provides a realization of magnons in a three-dimensional f-wave antialtermagnet. We show that nonlinear thermal transport effects of magnons, such as Edelstein and spin-splitter effects, provide clear experimental signatures of magnons in f-wave antialtermagnets. |
| title | Nonlinear Magnon Magnetic Moment Transport in Triangular-Lattice f-Wave Antialtermagnets |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2605.22614 |