Ultra-strong coupling of two ferromagnets via Meissner currents
arXiv:2501.16869 · doi:10.1103/j447-3jl4
Abstract
In this work, we study the magnetization dynamics in a ferromagnet/insulator/ferromagnet trilayer sandwiched between two superconductors (S/F/I/F/S heterostructure). It is well-known that a conceptually similar S/F/S system is a platform for implementing ultra-strong magnon-photon coupling. Here, we demonstrate that in such S/F/I/F/S heterostructure, ultra-strong magnon-magnon coupling between the two F layers also appears. The strength of this interaction is many times greater than the strength of the usual dipole-dipole interaction. It is mediated via Meissner currents excited in the superconductor layers by the magnon stray fields. The strength of the magnon-magnon coupling is anisotropic, and its anisotropy is opposite to the anisotropy of the magnon-photon coupling, which allows them to be separated. Both couplings become much stronger when the temperature drops below the critical temperature of the superconductor layers. It enables the implementation of an efficient tuning of the wavenumber in the S/F/I/F/S heterostructures controlled by temperature in a wide range of frequencies. Overall, the rich and tunable spectrum of S/F/I/F/S multilayers opens broad prospects for their application in magnonics.
References in corpus (38)
- Ultrastrong coupling between light and matter
- Nonlocal magnetization dynamics in ferromagnetic heterostructures
- Realization of XNOR and NAND spin-wave logic gates
- Reconfigurable nano-scale spin-wave directional coupler
- Brillouin light scattering studies of planar metallic magnonic crystals
- Current-controlled dynamic magnonic crystal
- Design of a spin-wave majority gate employing mode selection
- A spin-wave logic gate based on a width-modulated dynamic magnonic crystal
- Magnon-Fluxon interaction in a ferromagnet/superconductor heterostructure
- Electric Control of Spin Currents and Spin-Wave Logic
- Spin-wave logic devices based on isotropic forward volume magneto-static waves
- Electric-field coupling to spin waves in a centrosymmetric ferrite
- Quantum amplification and simulation of strong and ultrastrong coupling of light and matter
- Magnon based logic in a multi-terminal YIG/Pt nanostructure
- Composite Topological Excitations in Ferromagnet-Superconductor Heterostructures
- Skyrmion-(Anti)Vortex Coupling in a Chiral Magnet-Superconductor Heterostructure
- Ultra-strong photon-to-magnon coupling in multilayered heterostructures involving superconducting coherence via ferromagnetic layers
- Effect of Meissner screening and trapped magnetic flux on magnetization dynamics in thick Nb/Ni80Fe20/Nb trilayers
- Manipulation of Magnetic Skyrmions by Superconducting Vortices in Ferromagnet-Superconductor Heterostructures
- Observation and control of hybrid spin-wave-Meissner-current transport modes
- Magnetization dynamics in proximity-coupled superconductor/ferromagnet/superconductor multilayers
- Generation of a superconducting vortex via Néel skyrmions
- Approaching to the deep-strong photon-to-magnon coupling
- Possible evidence for spin-transfer torque induced by spin-triplet supercurrent
- Imaging spin-wave damping underneath metals using electron spins in diamond
- Bias-free spin-wave phase shifter for magnonic logic
- Interaction of a Neel-type skyrmion and a superconducting vortex
- Ultrastrong magnon-photon coupling and entanglement in superconductor/ferromagnet nanostructures
- Dynamics of two ferromagnetic insulators coupled by superconducting spin current
- Giant demagnetization effects induced by superconducting films
- Magnon-Cooparons in magnet-superconductor hybrids
- Coupling of microwave magnetic dynamics in thin ferromagnetic films to stripline transducers in the geometry of the broadband stripline ferromagnetic resonance
- Temperature-sensitive spin-wave nonreciprocity induced by interlayer dipolar coupling in ferromagnet/X (X=paramagnet, superconductor) hybrid systems
- Bias-free reconfigurable magnonic phase shifter based on a spin-current controlled ferromagnetic resonator
- Dynamic control of spin wave spectra using spin-polarized currents
- Renormalization of antiferromagnetic magnons by superconducting condensate and quasiparticles
- Stacking order-dependent sign-change of microwave phase due to eddy currents in nanometer-scale NiFe/Cu heterostructures
- Antiferromagnetic resonances in superconductor-ferromagnet multilayers