Nonlinear longitudinal and transverse magnetoresistances due to current-induced magnon creation-annihilation processes

Abstract

Charge-spin conversion phenomena such as the spin Hall effect allow for the excitation of magnons in a magnetic layer by passing an electric current in an adjacent nonmagnetic conductor. We demonstrate that this current-induced modification of the magnon density generates an additional nonlinear longitudinal and transverse magnetoresistance for every magnetoresistance that depends on the magnetization. Using harmonic measurements, we evidence that these magnon creation-annihilation magnetoresistances dominate the second harmonic longitudinal and transverse resistance of thin Y${}_3$Fe${}_5$O${}_{12}$/Pt bilayers. Our results apply to both insulating and metallic magnetic layers, elucidating the dependence of the magnetoresistance on applied current and magnetic field for a broad variety of systems excited by spin currents.

References in corpus (48)

• Anomalous Hall effect
• Nonlocal magnetization dynamics in ferromagnetic heterostructures
• Symmetry and magnitude of spin-orbit torques in ferromagnetic heterostructures
• Spin Hall Magnetoresistance Induced by a Non-Equilibrium Proximity Effect
• Long distance transport of magnon spin information in a magnetic insulator at room temperature
• Theory of spin Hall magnetoresistance
• Control of spin-orbit torques through crystal symmetry in WTe2/ferromagnet bilayers
• Universal Scaling Behavior of Anomalous Hall Effect and Anomalous Nernst Effect in Itinerant Ferromagnets
• Comparative Measurements of Inverse Spin Hall and Magnetoresistance in YIG|Pt and YIG|Ta
• Quantitative study of the spin Hall magnetoresistance in ferromagnetic insulator/normal metal hybrids
• Interplay of spin-orbit torque and thermoelectric effects in ferromagnet/normal metal bilayers
• Unidirectional spin Hall magnetoresistance in ferromagnet/normal metal bilayers
• Nonlinear Hall Effects
• Spin Transport at Interfaces with Spin-Orbit Coupling: Phenomenology
• Generation of coherent spin-wave modes in Yttrium Iron Garnet microdiscs by spin-orbit torque
• Spin-Hall Magnetoresistance in Platinum on Yttrium Iron Garnet: Dependence on platinum thickness and in-plane/out-of-plane magnetization
• Large Unidirectional Magnetoresistance in a Magnetic Topological Insulator
• Observation of the Orbital Rashba-Edelstein Magnetoresistance
• Negative spin Hall magnetoresistance of Pt on the bulk easy-plane antiferromagnet NiO
• Bilinear magneto-electric resistance as a probe of three-dimensional spin texture in topological surface states
• Current-nonlinear Hall effect and spin-orbit torque magnetization switching in a magnetic topological insulator
• Magnetization oscillations and waves driven by pure spin currents
• Magnetoresistance Anisotropy of Polycrystalline Cobalt Films: Geometrical-Size- and Domain-Effects
• Direct detection of magnon spin transport by the inverse spin Hall effect
• Nonlinear planar Hall effect
• Origins of the unidirectional spin Hall magnetoresistance in metallic bilayers
• Anisotropic Magnetoresistance in Ga${}_{1-x}$Mn${}_x$As
• Magnetotransport of dirty-limit van Hove singularity quasiparticles
• Unconventional spin Hall effects in nonmagnetic solids
• Spin transport in a magnetic insulator with zero effective damping
• Observation of Large Unidirectional Rashba Magnetoresistance in Ge(111)
• Theory of Spin Hall Magnetoresistance from a Microscopic Perspective
• Magnetic properties and domain structure of ultrathin yttrium iron garnet/Pt bilayers
• Spin conductance of YIG thin films driven from thermal to subthermal magnons regime by large spin-orbit torque
• Exchange magnon induced resistance asymmetry in permalloy spin-Hall oscillators
• Direct evidence of spatial stability of Bose-Einstein condensate of magnons
• Unidirectional orbital magnetoresistance in light metal/ferromagnet bilayers
• Magnon contribution to unidirectional spin Hall magnetoresistance
• Relation between unidirectional spin Hall magnetoresistance and spin current-driven magnon generation
• Origin of threshold current density for asymmetric magnetoresistance in Pt/Py bilayers
• Thickness dependence study of current-driven ferromagnetic resonance in Y3Fe5O12/heavy metal bilayers
• Spin Hall magnetoresistance in heterostructures consisting of noncrystalline paramagnetic YIG and Pt
• Large Unidirectional Magnetoresistance in Metallic Heterostructures in the Spin Transfer Torque Regime
• Current-induced switching of YIG/Pt bilayers with in-plane magnetization due to Oersted fields
• Magnon transport in ${\mathbf{Y}}_3\mathbf{F}{\mathbf{e}}_5{\mathbf{O}}_{12}$/Pt nanostructures with reduced effective magnetization
• Estimation of spin-orbit torques in the presence of current-induced magnon creation and annihilation
• Non-local magnon transconductance in extended magnetic insulating films.\\ Part I: spin diode effect
• Non-local magnon-based transport in yttrium iron garnet/platinum heterostructures at high temperatures

Cited by in corpus (5)

• Estimation of spin-orbit torques in the presence of current-induced magnon creation and annihilation
• Current-Controlled Magnon-Magnon Coupling in an On-Chip Cavity Resonator
• Coherent and Dissipative Spin Torques in Quantum Dots: A Unified Framework for Quantum Spin Dynamics
• Charge-to-spin conversion in epitaxial and polycrystalline Bi and Bi/Ag layers
• Roles of Electron-Magnon Cross Diffusion in Unidirectional Magnetoresistance of Metallic Magnetic Bilayers