Electric polarization induced by magnons and magnon Nernst effects
arXiv:2407.16004 · doi:10.1073/pnas.2507255122
Abstract
Magnons offer a promising path toward energy-efficient information transmission and the development of next-generation classical and quantum computing technologies. However, methods to efficiently excite, manipulate, and detect magnons remain a critical need. Here, we show that magnons, despite their charge-neutrality, can induce electric polarization as a result of both their spin and orbital moments. We demonstrate this by calculating the electric polarization induced by magnons in two-dimensional (2D) honeycomb antiferromagnets. The electric polarization becomes finite when the Dzyaloshinskii-Moriya Interaction (DMI) is present and its magnitude can be increased by symmetries of the system. We illustrate this by computing and comparing the electric polarizations induced by the magnon Nernst effects in 2D materials with Néel and Zigzag ordering. Our findings show that in the Zigzag order, where the effect is dominated by the magnon orbital moment, the induced electric polarization is approximately three orders of magnitude greater than in the Néel phase. These findings reveal that electric fields could enable both detection and manipulation of magnons under certain conditions by leveraging their spin and orbital angular moment. They also suggest that the discovery or engineering of materials with substantial magnon orbital moments could lead to more practical use of magnons for future computing and information transmission device applications.
References in corpus (31)
- Observation of the Magnon Hall Effect
- Theory of magnon-driven spin Seebeck effect
- Quantum magnonics: when magnon spintronics meets quantum information science
- Theoretical prediction of rotating magnon wavepacket in ferromagnets
- Observation of the orbital Hall effect in a light metal Ti
- Spin chirality on a two-dimensional frustrated lattice
- Orbitronics: Orbital Currents in Solids
- Exciton-Coupled Coherent Magnons in a 2D Semiconductor
- Magneto-Optical Detection of the Orbital Hall Effect in Chromium
- Dissipation-based Quantum Sensing of Magnons with a Superconducting Qubit
- Quantum control of a single magnon in a macroscopic spin system
- Spin waves in the Frustrated Kagome Lattice Antiferromagnet KFe3(OH)6(SO4)2
- Theory of Current-Induced Angular Momentum Transfer Dynamics in Spin-Orbit Coupled Systems
- Topological Magnons and Edge States in Antiferromagnetic Skyrmion Crystals
- Time-domain observation of ballistic orbital-angular-momentum currents with giant relaxation length in tungsten
- Tunable Exciton-Hybridized Magnon Interactions in a Layered Semiconductor
- Magnetic Structure and Spin Waves in the Kagomé Jarosite compound
- Thermal Hall effect of magnons in collinear antiferromagnetic insulators: signatures of magnetic and topological phase transitions
- Orbital Magnetic Moment of Magnons
- Strongly coupled magnon-plasmon polaritons in graphene- 2D ferromagnet heterostructures
- Magnon-mediated qubit coupling determined via dissipation measurements
- Magnetoelastic coupling enabled tunability of magnon spin current generation in 2D antiferromagnets
- Electron-magnon coupling and quasiparticle lifetimes on the surface of a topological insulator
- Direct optical probe of magnon topology in two-dimensional quantum magnets
- Magnon-Plasmon Hybridization Mediated by Spin-Orbit Interaction in Magnetic Materials
- Evidence of Magnon-Mediated Orbital Magnetism in a Quasi-2D Topological Magnon Insulator
- Tunable topological magnon-polaron states and anomalous Hall phenomena in two-dimensional ferromagnetic insulators
- Giant spin Nernst effect in a two-dimensional antiferromagnet due to magnetoelastic coupling-induced gaps and interband transitions between magnon-like bands
- Gauge-Invariant Measure of the Magnon Orbital Angular Momentum
- Hybridized magnonic materials for THz frequency applications
- Magnon-mediated quantum gates for superconducting qubits