Dynamic stiffness of spin valves
arXiv:cond-mat/0212130 · doi:10.1103/PhysRevB.67.140404
Abstract
The dynamics of the magnetic order parameters of ferromagnet/normal-metal/ferromagnet spin valves and isolated ferromagnets may be very different. We investigate the role of the nonequilibrium spin-current exchange between the ferromagnets in the magnetization precession and switching. We find a (low-temperature) critical current bias for a coherent current-induced magnetization excitation in spin valves, which unifies and generalizes previous ideas of Slonczewski and Berger. In the absence of an applied bias, the effect of the spin transfer can be expressed as magnetic--configuration-dependent Gilbert damping.
4 pages, 2 figures
References in corpus (12)
- Enhanced Gilbert Damping in Thin Ferromagnetic Films
- Current-driven Magnetization Reversal and Spin Wave Excitations in Co/Cu/Co Pillars
- Spin pumping and magnetization dynamics in metallic multilayers
- Anatomy of Spin-Transfer Torque
- Finite-element theory of transport in ferromagnet-normal metal systems
- Spin Torques in Ferromagnetic/Normal Metal Structures
- Spin-transport in multi-terminal normal metal - ferromagnet systems with non-collinear magnetizations
- Thermally-Activated Magnetic Reversal Induced by a Spin-Polarized Current
- Interface resistance of disordered magnetic multilayers
- Spin-transfer in diffusive ferromagnet-normal metal systems with spin-flip scattering
- Universal angular magnetoresistance and spin torque in ferromagnetic/normal metal hybrids
- Magnetization reversal triggered by spin injection in magnetic nanowires
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- Spin Transfer Torques
- Nonlocal magnetization dynamics in ferromagnetic heterostructures
- First-principles study of magnetization relaxation enhancement and spin-transfer in thin magnetic films
- Macrospin Models of Spin Transfer Dynamics
- Platinum thickness dependence of the inverse spin-Hall voltage from spin pumping in a hybrid YIG/Pt system
- Current-Induced Nanomagnet Dynamics for Magnetic Fields Perpendicular to the Sample Plane
- Theory of Current-Induced Magnetization Precession
- Spin-Torque Ferromagnetic Resonance Measurements of Damping in Nanomagnets
- Berry phase of magnons in textured ferromagnets
- 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
- Transverse spin diffusion in ferromagnets
- Voltage generation by ferromagnetic resonance
- Time-Resolved Spin Torque Switching and Enhanced Damping in Py/Cu/Py Spin-Valve Nanopillars
- Spin-Polarized Current Induced Torque in Magnetic Tunnel Junctions
- Exceptional points in dissipatively coupled spin dynamics
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- Magnetization damping in noncollinear spin valves with antiferromagnetic interlayer couplings
- Self-consistent calculation of spin transport and magnetization dynamics
- Non-Hermitian topology of one-dimensional spin-torque oscillator arrays
- Enhancement of the Gilbert damping constant due to spin pumping in noncollinear ferromagnet/nonmagnet/ferromagnet trilayer systems
- Reducing the critical switching current in nanoscale spin valves
- Noise and dissipation in magnetoelectronic nanostructures
- YIG thickness and frequency dependence of the spin-charge current conversion in YIG/Pt systems
- Critical current of spin transfer torque-driven magnetization dynamics in magnetic multilayers
- Current-induced macrospin vs spin-wave excitations in spin valves
- Fluctuations of the Magnetization in Thin Films due to Conduction Electrons
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- Nonlinear analysis of magnetization dynamics excited by spin Hall effect
- Antiferromagnet-Based Neuromorphics Using Dynamics of Topological Charges
- Carbon nanotube: a low-loss spin-current waveguide
- Charge pumping and the colored thermal voltage noise in spin valves
- Dissipation due to pure spin-current generated by spin pumping
- Dynamic coupling of ferromagnets via spin Hall magnetoresistance
- Measurement of Gilbert damping parameters in nanoscale CPP-GMR spin-valves
- Axial Current driven by Magnetization Dynamics in Weyl Semimetals
- Spin detection in quantum dots by electric currents
- Characterization of spin relaxation anisotropy in Co using spin pumping
- Phase dynamics of oscillating magnetizations coupled via spin pumping
- Anisotropic and controllable Gilbert-Bloch dissipation in spin valves
- Angle resolved relaxation of spin currents by antiferromagnets in spin valves
- Spin-current driven spontaneous coupling of ferromagnets
- General Form of Magnetization Damping: Magnetization dynamics of a spin system evolving nonadiabatically and out of equilibrium
- Tensor damping in metallic magnetic multilayers
- Graphene as a non-magnetic spin-current lens
- Charge conservation in spin torque oscillators leads to a self-induced torque
- Proposal of an experimental scheme for determination of penetration depth of transverse spin current by a nonlocal spin valve
- Dependence of critical current of spin transfer torque-driven magnetization dynamics on free layer thickness