Emission of coherent propagating magnons by insulator-based spin-orbit torque oscillators

Abstract

We experimentally demonstrate generation of coherent propagating magnons in ultra-thin magnetic-insulator films by spin-orbit torque induced by dc electric current. We show that this challenging task can be accomplished by utilizing magnetic-insulator films with large perpendicular magnetic anisotropy. We demonstrate simple and flexible spin-orbit torque devices, which can be used as highly efficient nanoscale sources of coherent propagating magnons for insulator-based spintronic applications.

References in corpus (12)

• Emergent Phenomena Induced by Spin-Orbit Coupling at Surfaces and Interfaces
• Interface-Induced Phenomena in Magnetism
• Long distance transport of magnon spin information in a magnetic insulator at room temperature
• Magnon spin transport driven by the magnon chemical potential in a magnetic insulator
• Generation of coherent spin-wave modes in Yttrium Iron Garnet microdiscs by spin-orbit torque
• Ultra-low damping insulating magnetic thin films get perpendicular
• Magnetization oscillations and waves driven by pure spin currents
• Spin caloritronic nano-oscillator
• Spin-wave propagation in ultra-thin YIG based waveguides
• Long-distance spin transport in a disordered magnetic insulator
• Spin conductance of YIG thin films driven from thermal to subthermal magnons regime by large spin-orbit torque
• Chemical potential of quasi-equilibrium magnon gas driven by pure spin current

Cited by in corpus (31)

• Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems
• Magnon Blockade in a Hybrid Ferromagnet-Superconductor Quantum System
• High-speed domain wall racetracks in a magnetic insulator
• Spin-Orbit-Torque Driven Propagating Spin Waves
• Spin-orbit-torque magnonics
• Spin transport in a magnetic insulator with zero effective damping
• Controlled nonlinear magnetic damping in spin-Hall nano-devices
• True amplification of spin waves in magnonic nano-waveguides
• Spin wave-driven variable-phase mutual synchronization in spin Hall nano-oscillators
• All-electrical Magnon Transport Experiments in Magnetically Ordered Insulators
• Electrical spectroscopy of the spin-wave dispersion and bistability in gallium-doped yttrium iron garnet
• Optically-induced frequency up-conversion of the ferromagnetic resonance in an ultrathin garnet
• Composition-tunable magnon-polaron anomalies in spin Seebeck effects in epitaxial Bi${}_x$Y${}_{3-x}$Fe${}_5$O${}_{12}$ films
• Dispersionless propagation of ultra-short spin-wave pulses in ultrathin yttrium iron garnet waveguides
• Interplay of magnetization dynamics with microwave waveguide at cryogenic temperatures
• Magnon transport in ${\mathbf{Y}}_3\mathbf{F}{\mathbf{e}}_5{\mathbf{O}}_{12}$/Pt nanostructures with reduced effective magnetization
• Temperature-independent ferromagnetic resonance shift in Bi-doped YIG garnets through magnetic anisotropy tuning
• Propagating magnetic droplet solitons as moveable nanoscale spin-wave sources with tunable direction of emission
• Spin-wave propagation in metallic CoFe films determined by microfocused frequency-resolved magneto-optic Kerr effect
• Non-local magnon transconductance in extended magnetic insulating films.\\ Part I: spin diode effect
• Spin wave excitations in a nanowire spin-torque oscillator with perpendicular magnetic anisotropy
• Controllable excitation of quasi-linear and bullet modes in a spin-Hall nano-oscillator
• Non-local magnon transconductance in extended magnetic insulating films.\\Part II: two-fluid behavior
• Ultrathin bismuth-yttrium iron garnet films with tunable magnetic anisotropy
• Spin orbit torque nano-oscillators by dipole field-localized spin wave modes
• Reduced effective magnetization and damping by slowly-relaxing impurities in strained $\gamma$-$\mathrm{F}{\mathrm{e}}_2{\mathrm{O}}_3$ thin films
• Efficient geometrical control of spin waves in microscopic YIG waveguides
• Optimizing Hybrid Ferromagnetic Metal-Ferrimagnetic Insulator Spin-Hall Nano-Oscillators: A Micromagnetic Study
• Highly efficient coherent amplification of zero-field spin waves in YIG nano-waveguides
• Spin-wave emission with current-controlled frequency by a PMA-based spin-Hall oscillator
• Coherent Microwave Driving of Domain Wall Depinning in a Ferrimagnetic Garnet