Dynamically stabilized spin superfluidity in frustrated magnets
arXiv:2012.08340 · doi:10.1103/PhysRevB.103.174424
Abstract
We study the onset of spin superfluidity, namely coherent spin transport mediated by a topological spin texture, in frustrated exchange-dominated magnetic systems, engendered by an external magnetic field. We show that for typical device geometries used in nonlocal magnetotransport experiments, the magnetic field stabilizes a spin superflow against fluctuations, up to a critical current. For a given current, the critical field depends on the precessional frequency of the texture, which can be separately controlled. We contrast such dynamic stabilization of a spin superfluid to the conventional approaches based on topological stabilization.
arXiv comment4 pages, 2 figures and 2 pages of supplemental material
References in corpus (17)
- Nonlocal magnetization dynamics in ferromagnetic heterostructures
- Spin currents and spin superfluidity
- Superfluid spin transport through antiferromagnetic insulators
- Superfluid Spin Transport through Easy-Plane Ferromagnetic Insulators
- Experimental Signatures of Spin Superfluid Ground State in Canted Antiferromagnet Cr2O3 via Nonlocal Spin Transport
- Universal Magnetic Properties of Frustrated Quantum Antiferromagnets in Two Dimensions
- Dissipationless Spin Transport in Thin Film Ferromagnets
- Long-Distance Spin Transport Through a Graphene Quantum Hall Antiferromagnet
- Spin Hall phenomenology of magnetic dynamics
- Dissipationless Multiferroic Magnonics
- Spin hydrodynamics in amorphous magnets
- Generalized Boundary Conditions for Spin Transfer
- Exploiting Coherence in Nonlinear Spin-Superfluid Transport
- Self-stabilizing exchange-mediated spin transport
- Hydrodynamic description of long-distance spin transport through noncollinear magnetization states: the role of dispersion, nonlinearity, and damping
- Magnetic Domain Wall Floating on a Spin Superfluid
- Scattering theory of transport through disordered magnets