Field-Free Synthetic-Ferromagnet Spin Torque Oscillator
arXiv:1301.4294 · doi:10.1103/PhysRevB.87.020409
Abstract
We study the magnetization dynamics of spin valve structures with a free composite synthetic ferromagnet (SyF) that consists of two ferromagnetic layers coupled through a normal metal spacer. A ferromagnetically coupled SyF can be excited into dynamical precessional states by an applied current without external magnetic fields. We analytically determine the stability of these states in the space spanned by the current density and SyF interlayer exchange coupling. Numerical simulations confirm our analytical results.
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Cited by in corpus (5)
- Current-induced spin wave excitation in Pt|YIG bilayer
- Magnetization damping in noncollinear spin valves with antiferromagnetic interlayer couplings
- Inducing out-of-plane precession of magnetization for microwave assisted magnetic recording using an oscillating polarizer in spin torque oscillator
- Frequency enhancement and power tunability in tilted polarizer spin-torque nano oscillator
- Current-induced Pinwheel Oscillations in Perpendicular Magnetic Anisotropy Spin Valve Nanopillars