Current-induced transverse spin wave instability in a thin nanomagnet

Abstract

We show that an unpolarized electric current incident perpendicular to the plane of a thin ferromagnet can excite a spin-wave instability transverse to the current direction if source and drain contacts are not symmetric. The instability, which is driven by the current-induced ``spin-transfer torque'', exists for one current direction only.

4 pages, 2 figures

References in corpus (3)

• Spin pumping and magnetization dynamics in metallic multilayers
• Current-Driven Magnetic Excitations in Permalloy-Based Multilayer Nanopillars
• Current-induced spin-wave excitations in a single ferromagnetic layer

Cited by in corpus (49)

• Microwave Oscillations of a Nanomagnet Driven by a Spin-Polarized Current
• Spin Transfer Torques
• Nonlocal magnetization dynamics in ferromagnetic heterostructures
• Measurement of the Spin-Transfer-Torque Vector in Magnetic Tunnel Junctions
• Spin-transfer-driven ferromagnetic resonance of individual nanomagnets
• Current-Driven Microwave Dynamics in Magnetic Point Contacts as a Function of Applied Field Angle
• Nonequilibrium quantum criticality in open electronic systems
• Frequency Modulation of Spin-Transfer Oscillators
• Enhancement of the Anti-Damping Spin Torque Efficacy of Platinum by Interface Modification
• Mode- and size-dependent Landau-Lifshitz damping in magnetic nanostructures: Evidence for non-local damping
• Time-resolved detection of spin-transfer-driven ferromagnetic resonance and spin torque measurement in magnetic tunnel junctions
• Bias and angular dependence of spin-transfer torque in magnetic tunnel junctions
• Spin transport parameters in metallic multilayers determined by ferromagnetic resonance measurements of spin pumping
• Influence of a Uniform Current on Collective Magnetization Dynamics in a Ferromagnetic Metal
• Mechanisms limiting the coherence time of spontaneous magnetic oscillations driven by DC spin-polarized currents
• Large-amplitude coherent spin waves exited by spin-polarized current in nanoscale spin valves
• Current induced magnetization dynamics in current perpendicular to the plane spin valves
• Current Induced Excitations in Cu/Co/Cu Single Ferromagnetic Layer Nanopillars
• Spin-Transfer Excitations of Permalloy Nanopillars for Large Applied Currents
• Magnetization precession due to a spin polarized current in a thin nanoelement: numerical simulation study
• Model for a collimated spin wave beam generated by a single layer, spin torque nanocontact
• Time-Domain Studies of Very-Large-Angle Magnetization Dynamics Excited by Spin Transfer Torques
• Spin-Scattering Rates in Metallic Thin Films Measured by Ferromagnetic Resonance Damping Enhanced by Spin-Pumping
• Giant nonreciprocal emission of spin waves in Ta/Py bilayers
• Spin transport and dynamics in all-oxide perovskite La${}_{2/3}$Sr${}_{1/3}$MnO${}_3$/SrRuO${}_3$ bilayers probed by ferromagnetic resonance
• Self-consistent calculation of spin transport and magnetization dynamics
• Spin transfer due to quantum fluctuations of magnetization
• Uniaxial anisotropy, intrinsic and extrinsic damping in Co${}_2$FeSi Heusler alloy thin films
• Current-Driven Magnetization Dynamics in Magnetic Multilayers
• Current-induced macrospin vs spin-wave excitations in spin valves
• Spin-transfer in an open ferromagnetic layer: from negative damping to effective temperature
• Bipolar High Field Excitations in Co/Cu/Co Nanopillars
• Current-induced switching in single ferromagnetic layer nanopillar junctions
• Spectroscopy of phonons and spin torques in magnetic point contacts
• Surface Spin-valve Effect
• Manipulating Current-Induced Magnetization Switching
• Current induced transverse spin-wave instability in thin ferromagnets: beyond linear stability analysis
• Spin-transfer torque induced reversal in magnetic domains
• Energy and momentum conservation in spin transfer
• Magnetization reversal driven by spin-injection : a mesoscopic spin-transfer effect
• Magnon instability driven by heat current in magnetic bilayers
• Nanofabrication of spin-transfer torque devices by a PMMA mask one step process: GMR versus single layer devices
• Focused-ion-beam milling based nanostencil mask fabrication for spin transfer torque studies
• Transfer of magnetization by spin injection between both interfaces of a Ni nanowire
• Current-induced magnetization reversal in SrRuO3
• Current driven spin-wave instability triggered by the anomalous Hall effect
• Current-induced magnetization dynamics in single and double layer magnetic nanopillars grown by molecular beam epitaxy
• Current Driven tri-stable Resistance States in Magnetic Point Contacts
• Spin-transfer-induced excitations in bilayer magnetic nanopillars at high fields: The effects of contact layers