Spin transport in a magnetic insulator with zero effective damping

Abstract

Applications based on spin currents strongly profit from the control and reduction of their effective damping and their transport properties. We here experimentally observe magnon mediated transport of spin (angular) momentum through a 13.4 nm thin yttrium iron garnet film with full control of the magnetic damping via spin-orbit torque. Above a critical spin-orbit torque, the fully compensated damping manifests itself as an increase of magnon conductivity by almost two orders of magnitude. We compare our results to theoretical expectations based on recently predicted current induced magnon condensates and discuss other possible origins of the observed critical behaviour.

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Cited by in corpus (43)

• Quantum magnonics: when magnon spintronics meets quantum information science
• Spin Insulatronics
• Chirality as Generalized Spin-Orbit Interaction in Spintronics
• Observation of the Magnon Polarization
• Observation of Antiferromagnetic Magnon Pseudospin Dynamics and the Hanle effect
• Spin-orbit-torque magnonics
• Giant magnon spin conductivity approaching the two-dimensional transport regime in ultrathin yttrium iron garnet films
• Current-driven dynamics and ratchet effect of skyrmion bubbles in a ferrimagnetic insulator
• True amplification of spin waves in magnonic nano-waveguides
• Control of nonlocal magnon spin transport via magnon drift currents
• Evidence for spin current driven Bose-Einstein condensation of magnons
• Antiferromagnetic magnon pseudospin: Dynamics and diffusive transport
• Imaging spin-wave damping underneath metals using electron spins in diamond
• Efficient Gating of Magnons by Proximity Superconductors
• Design of an optomagnonic crystal: towards optimal magnon-photon mode matching at the microscale
• Directional excitation of a high-density magnon gas using coherently driven spin waves
• Control of the Bose-Einstein Condensation of Magnons by the Spin-Hall Effect
• Spin-orbit torque control of spin waves in a ferromagnetic waveguide
• All-electrical Magnon Transport Experiments in Magnetically Ordered Insulators
• SU(4) spin waves in the $\nu =\pm 1$ quantum Hall ferromagnet in graphene
• Cross-sublattice Spin Pumping and Magnon Level Attraction in van der Waals Antiferromagnets
• Spin-Wave Doppler Shift by Magnon Drag in Magnetic Insulators
• Electrically induced strong modulation of magnons transport in ultrathin magnetic insulator films
• Static magnetic proximity effects and spin Hall magnetoresistance in Pt/Y${}_3$Fe${}_5$O${}_{12}$ and inverted Y${}_3$Fe${}_5$O${}_{12}$/Pt bilayers
• Magnon transport in ${\mathbf{Y}}_3\mathbf{F}{\mathbf{e}}_5{\mathbf{O}}_{12}$/Pt nanostructures with reduced effective magnetization
• Nonlinear longitudinal and transverse magnetoresistances due to current-induced magnon creation-annihilation processes
• From Chaotic Spin Dynamics to Non-collinear Spin Textures in YIG Nano-films by Spin Current Injection
• Quantitative comparison of magnon transport experiments in three-terminal YIG/Pt nanostructures acquired via dc and ac detection techniques
• Controlling the propagation of dipole-exchange spin waves using local inhomogeneity of the anisotropy
• Neutron Scattering Study on Yttrium Iron Garnet for Spintronics
• Non-local magnon transconductance in extended magnetic insulating films.\\ Part I: spin diode effect
• Intertwining of lasing and superradiance under spintronic pumping
• Current-Controlled Magnon-Magnon Coupling in an On-Chip Cavity Resonator
• Voltage-control of damping constant in magnetic-insulator/topological-insulator bilayers
• The role of q-spin singlet pairs of physical spins in the dynamical properties of the spin-1/2 Heisenberg-Ising XXZ chain
• Magnonic spin Joule heating and rectification effects
• Non-local magnon transconductance in extended magnetic insulating films.\\Part II: two-fluid behavior
• Low Temperature Suppression of the Spin Nernst Angle in Pt
• Efficient geometrical control of spin waves in microscopic YIG waveguides
• Spin-accumulation induced magnetic texture in a metal-insulator bilayer
• Influence of low-energy magnons on magnon Hanle experiments in easy-plane antiferromagnets
• Ellipticity effects on diffusive magnon spin and heat transport in easy-plane ferromagnets
• Observation of Dyakonov-Perel-type magnon spin relaxation in uniaxial antiferromagnetic insulators