Intrinsic Second-Order magnon Thermal Hall Effect
arXiv:2405.06879 · doi:10.1088/1361-648X/ad5bb0
Abstract
In this paper, we study the intrinsic contribution of nonlinear magnon thermal Hall Effect. We derive the intrinsic second order thermal Hall conductivity of magnon by the thermal scalar potential (TSP) method and the thermal vector potential (TVP) method. We find that the intrinsic second order magnon thermal Hall conductivity is related to the thermal Berry-connection polarizability (TBCP). We apply our theory to the monolayer ferromagnetic Hexagonal lattice, and we find that the second order magnon thermal Hall conductivity can be controlled by changing Dzyaloshinskii-Moriya strength and applying strain.
15 pages, 5 figures
References in corpus (11)
- Observation of the Magnon Hall Effect
- Berry phase effect in anomalous thermoelectric transport
- Topological Magnon Insulator in Insulating Ferromagnet
- Intrinsic Second-Order Anomalous Hall Effect and Its Application in Compensated Antiferromagnets
- Topological insulators and semimetals in classical magnetic systems
- Thermal vector potential theory of transport induced by temperature gradient
- Nonlinear magnon spin Nernst effect in antiferromagnets and strain-tunable pure spin current
- Quantum Theory of Nonlinear Thermal Response
- Intrinsic nonlinear thermal Hall transport of magnons: A Quantum kinetic theory approach
- Rectification of the spin Seebeck current in noncollinear antiferromagnets
- Non-linear magnon transport in a bilayer van der Waals antiferromagnets