Propagation length of antiferromagnetic magnons governed by domain configurations

Abstract

The compensated magnetic order and characteristic, terahertz frequencies of antiferromagnetic materials makes them promising candidates to develop a new class of robust, ultra-fast spintronic devices. The manipulation of antiferromagnetic spin-waves in thin films is anticipated to lead to new exotic phenomena such as spin-superfluidity, requiring an efficient propagation of spin-waves in thin films. However, the reported decay length in thin films has so far been limited to a few nanometers. In this work, we achieve efficient spin-wave propagation, over micrometer distances, in thin films of the insulating antiferromagnet hematite with large magnetic domains whilst evidencing much shorter attenuation lengths in multidomain thin films. Through transport and magnetic imaging, we conclude on the role of the magnetic domain structure and spin-wave scattering at domain walls to govern the transport. We manipulate the spin transport by tailoring the domain configuration through field cycle training. For the appropriate crystalline orientation, zero-field spin-transport is achieved across micrometers, as required for device integration.

References in corpus (33)

• Antiferromagnetic spintronics
• Blowing Magnetic Skyrmion Bubbles
• Long distance transport of magnon spin information in a magnetic insulator at room temperature
• Electrically controlled long-distance spin transport through an antiferromagnetic insulator
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• Conduction of spin currents through insulating oxides
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• Current-polarity dependent manipulation of antiferromagnetic domains
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Cited by in corpus (38)

• Roadmap on Spin-Wave Computing
• Magnetic texture based magnonics
• Electrical control of magnetism by electric field and current-induced torques
• Long-distance spin-transport across the Morin phase transition up to room temperature in ultra-low damping single crystals of the antiferromagnet α-Fe2O3
• Observation of Antiferromagnetic Magnon Pseudospin Dynamics and the Hanle effect
• Room temperature antiferromagnetic resonance and inverse spin-Hall voltage in canted antiferromagnets
• Large spin Hall magnetoresistance in antiferromagnetic α-Fe2O3/Pt heterostructures
• Anisotropic long-range spin transport in canted antiferromagnetic orthoferrite YFeO${}_3$
• Nonvolatile Electric Field Control of Thermal Magnons in the Absence of an Applied Magnetic Field
• Control of nonlocal magnon spin transport via magnon drift currents
• Long-distance propagation of high-velocity antiferromagnetic spin waves
• Observation of current-induced switching in non-collinear antiferromagnetic IrMn${}_3$ by differential voltage measurements
• Dephasing of Transverse Spin Current in Ferrimagnetic Alloys
• Strong interfacial exchange field in a heavy metal/ferromagnetic insulator system determined by spin Hall magnetoresistance
• Structural sensitivity of the spin Hall magnetoresistance in antiferromagnetic thin films
• Antiferromagnetic magnon pseudospin: Dynamics and diffusive transport
• Observation of nonreciprocal magnon Hanle effect
• Exceptional sign changes of the non-local spin Seebeck effect in antiferromagnetic hematite
• Antiferromagnetic insulatronics: spintronics in insulating 3d metal oxides with antiferromagnetic coupling
• Non-local spin Seebeck effect in the bulk easy-plane antiferromagnet NiO
• Altermagnetic splitting of magnons in hematite ($\alpha$-Fe${}_2$O${}_3$)
• Local and nonlocal spin Seebeck effect in lateral Pt-$\mathrm{C}{\mathrm{r}}_2{\mathrm{O}}_3$-Pt devices at low temperatures
• All-electrical Magnon Transport Experiments in Magnetically Ordered Insulators
• Revealing the Altermagnetism in Hematite via XMCD Imaging and Anomalous Hall Electrical Transport
• An insulating doped antiferromagnet with low magnetic symmetry as a room temperature spin conduit
• Surface-symmetry-driven Dzyaloshinskii--Moriya interaction and canted ferrimagnetism in collinear magnetoelectric antiferromagnet Cr${}_2$O${}_3$
• Role of NiO in the nonlocal spin transport through thin NiO films on Y${}_3$Fe${}_5$O${}_{12}$
• Electrical detection of the spin reorientation transition in antiferromagnetic TmFeO${}_3$ thin films by spin Hall magnetoresistance
• A puzzling insensitivity of magnon spin diffusion to the presence of 180${}^{\circ }$ domain walls in a ferrimagnetic insulator
• Micromagnetic study of spin transport in easy-plane antiferromagnetic insulators
• Theory of Domain-Wall Magnetoresistance in Metallic Antiferromagnets
• Impact of magnetic anisotropy on the magnon Hanle effect in $\alpha$-Fe${}_2$O${}_3$
• Magnon Transport in the Presence of Antisymmetric Exchange in a Weak Antiferromagnet
• Low Temperature Suppression of the Spin Nernst Angle in Pt
• Probing the Manipulation of Antiferromagnetic Order in CuMnAs Films Using Neutron Diffraction
• Influence of low-energy magnons on magnon Hanle experiments in easy-plane antiferromagnets
• Thickness-dependent magnon spin transport in antiferromagnetic insulators: Crossover from quasi-three-dimensional to quasi-two-dimensional regimes
• Observation of Dyakonov-Perel-type magnon spin relaxation in uniaxial antiferromagnetic insulators