Magnetic Domain Wall Floating on a Spin Superfluid
arXiv:1608.00683 · doi:10.1103/PhysRevLett.118.097201
Abstract
We theoretically investigate the transfer of angular momentum between a spin superfluid and a domain wall in an exchange coupled easy-axis and easy-plane magnetic insulator system. A domain wall in the easy-axis magnet absorbs spin angular momentum via disrupting the flow of a superfluid spin current in the easy-plane magnet. Focusing on an open geometry, where the spin current is injected electrically via a nonequilibrium spin accumulation, we derive analytical expressions for the resultant superfluid-mediated motion of the domain wall. The analytical results are supported by micromagnetic simulations. The proposed phenomenon extends the regime of magnon-driven domain-wall motion to the case when the magnons are condensed and exhibit superfluidity. Furthermore, by controlling the pinning of the domain wall, we propose a realization of a reconfigurable spin transistor. The long-distance dissipationless character of spin superfluids can thus be exploited for manipulating soliton-based memory and logic devices.
arXiv comment5 pages, 3 figures, supplementary
References in corpus (26)
- Spin Hall effect
- Enhanced Gilbert Damping in Thin Ferromagnetic Films
- Long distance transport of magnon spin information in a magnetic insulator at room temperature
- Thermally Driven Ratchet Motion of Skyrmion Microcrystal and Topological Magnon Hall Effect
- Dynamics of an Insulating Skyrmion under a Temperature Gradient
- All-magnonic spin-transfer torque and domain wall propagation
- Dynamics of domain walls in magnetic nanostrips
- Magnon-skyrmion scattering in chiral magnets
- Spin currents and spin superfluidity
- Superfluid spin transport through antiferromagnetic insulators
- Superfluid Spin Transport through Easy-Plane Ferromagnetic Insulators
- Theory of magnon-skyrmion scattering in chiral magnets
- Supercurrent in a room temperature Bose-Einstein magnon condensate
- Dissipationless Spin Transport in Thin Film Ferromagnets
- Thermomagnonic spin transfer and Peltier effects in insulating magnets
- Josephson and Persistent Spin Currents in Bose-Einstein Condensates of Magnons
- Skyrmionic spin Seebeck effect via dissipative thermomagnonic torques
- Spin Hall phenomenology of magnetic dynamics
- Non-Local Transport Mediated by Spin-Supercurrents
- Spin superfluidity and long-range transport in thin-film ferromagnets
- Spin Superfluidity in the Quantum Hall State of Graphene
- Thermally-Activated Phase Slips in Superfluid Spin Transport in Magnetic Wires
- Nonlocal Magnetoresistance Mediated by Spin Superfluidity
- Spin Superfluidity in Coplanar Multiferroics
- Topological Effects on Quantum Phase Slips in Superfluid Spin Transport
- Spin superfluidity, coherent spin precession, and magnon BEC
Cited by in corpus (10)
- Electrically controlled long-distance spin transport through an antiferromagnetic insulator
- Propagation length of antiferromagnetic magnons governed by domain configurations
- The dynamics of bimeron skyrmions in easy-plane magnets induced by a spin supercurrent
- Ferromagnetic Resonance Studies of Strain tuned Bi:YIG Films
- Local thermomagnonic torques in two-fluid spin dynamics
- Self-stabilizing exchange-mediated spin transport
- Spin wave driven domain wall motion in easy-plane ferromagnets: a particle perspective
- Domain wall dynamics in easy-cone magnets
- Dynamically stabilized spin superfluidity in frustrated magnets
- Propelling Ferrimagnetic Domain Walls by Dynamical Frustration