Current-induced spin-wave excitations in a single ferromagnetic layer

Abstract

A new current induced spin-torque transfer effect has been observed in a single ferromagnetic layer without resorting to multilayers. At a specific current density of one polarity injected from a point contact, abrupt resistance changes due to current-induced spin wave excitations have been observed. The critical current at the onset of spin-wave excitations depends linearly on the external field applied perpendicular to the layer. The observed effect is due to current-driven heterogeneity in an otherwise uniform ferromagnetic layer.

12 pages, 4 figures

References in corpus (11)

• Current-driven Magnetization Reversal and Spin Wave Excitations in Co/Cu/Co Pillars
• Anatomy of Spin-Transfer Torque
• Mechanisms of spin-polarized current-driven magnetization switching
• Modification of the Landau-Lifshitz Equation in the Presence of a Spin-Polarized Current in CMR and GMR Materials
• Finite-element theory of transport in ferromagnet-normal metal systems
• The Role of Spin-Dependent Interface Scattering in Generating Current-Induced Torques in Magnetic Multilayers
• Spin Torques in Ferromagnetic/Normal Metal Structures
• Current driven switching of magnetic layers
• Non-collinear spin transfer in Co/Cu/Co multilayers
• Ballistic electron transport through magnetic domain walls
• Conductance modulation by spin precession in non-collinear ferromagnet-normal metal-ferromagnet systems

Cited by in corpus (50)

• Spintronics: Fundamentals and applications
• Spin Transfer Torques
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• Direct-Current Induced Dynamics in Co90Fe10/Ni80Fe20 Point Contacts
• Terahertz Antiferromagnetic Spin Hall Nano-Oscillator
• Current-Induced Magnetization Reversal in High Magnetic Fields in Co/Cu/Co Nanopillars
• Theory of Current-Induced Magnetization Precession
• Influence of a Uniform Current on Collective Magnetization Dynamics in a Ferromagnetic Metal
• Current-induced transverse spin wave instability in a thin nanomagnet
• Current induced magnetization dynamics in current perpendicular to the plane spin valves
• Effect of Spin Current on Uniform Ferromagnetism: Domain Nucleation
• Current Induced Excitations in Cu/Co/Cu Single Ferromagnetic Layer Nanopillars
• Dynamics of Antiferromagnets Driven by Spin Current
• Model for a collimated spin wave beam generated by a single layer, spin torque nanocontact
• Direct current control of three magnon scattering processes in spin-valve nanocontacts
• Current-induced vortex displacement and annihilation in a single Permalloy disk
• Self-consistent calculation of spin transport and magnetization dynamics
• Current-Driven Magnetization Dynamics in Magnetic Multilayers
• Effects of spin current on ferromagnets
• Anomalous Hall voltage rectification and quantized spin-wave excitation induced by the simultaneous dc- and rf-current application in Ni81Fe19 wire
• Detection of spin reversal and nutations through current measurements
• Spin-transfer in an open ferromagnetic layer: from negative damping to effective temperature
• Current-induced switching in single ferromagnetic layer nanopillar junctions
• Surface Spin-valve Effect
• Spectroscopy of phonons and spin torques in magnetic point contacts
• Spin-dependent transport through a Weyl semimetal surface
• Current induced transverse spin-wave instability in thin ferromagnets: beyond linear stability analysis
• Subnanosecond switching of local spin-exchange coupled to ferromagnets
• Multiple magnon modes in the Co${}_3$Sn${}_2$S${}_2$ Weyl semimetal candidate
• Spin dynamics in point contacts to single ferromagnetic films
• Spin momentum transfer in current perpendicular to the plane spin valves
• Spin-transfer switching and low-field precession in exchange-biased spin valve nano-pillars
• Current-driven excitations in magnetic multilayers: a brief review
• Stimulated emission and absorption of photons in magnetic point contacts: toward metal-based spin-lasers
• Spin Torque and its Relation to Spin Filtering
• Inverted current-driven switching in Fe(Cr)/Cr/Fe(Cr) nanopillars
• Nanofabrication of spin-transfer torque devices by a PMMA mask one step process: GMR versus single layer devices
• Current-Driven Switching in Magnetic Multilayer Nanopillars
• Chaotic Spin Dynamics of a Long Nanomagnet Driven by a Current
• Transfer of magnetization by spin injection between both interfaces of a Ni nanowire
• Focused-ion-beam milling based nanostencil mask fabrication for spin transfer torque studies
• Current-induced magnetization reversal in SrRuO3
• Current driven spin-wave instability triggered by the anomalous Hall effect
• Magnon modes as a joint effect of surface ferromagnetism and spin-orbite coupling in CoSi chiral topological semimetal
• Current Driven tri-stable Resistance States in Magnetic Point Contacts
• Current-field diagram of magnetic states of a surface spin valve in a point contact with a single ferromagnetic film
• Spin-valve effect for spin-polarized surface states in topological semimetals
• Local spin transfer torque and magnetoresistance in domain walls with variable width
• Magnetic unipolar features in con- ductivity of point contacts between normal and ferromagnetic d-metals (Co, Ni, Fe)
• Vortex-like state observed in ferromagnetic contacts