Nanoconstriction spin-Hall oscillator with perpendicular magnetic anisotropy
arXiv:1706.05302 · doi:10.1063/1.4993910
Abstract
We experimentally study spin-Hall nano-oscillators based on [Co/Ni] multilayers with perpendicular magnetic anisotropy. We show that these devices are capable of single-frequency auto-oscillations at current densities comparable to those in the in-plane magnetized oscillators. The demonstrated oscillators exhibit large magnetization precession amplitudes, and their oscillation frequency is highly tunable by the electric current. These features make them promising for applications in high-speed integrated microwave circuits.
arXiv comment13 pages, 4 figures
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- Spin wave-driven variable-phase mutual synchronization in spin Hall nano-oscillators
- Topologically nontrivial magnonic solitons
- Time resolved imaging of the non-linear bullet mode within an injection-locked nano-contact spin Hall nano-oscillator
- Spin wave excitations in a nanowire spin-torque oscillator with perpendicular magnetic anisotropy
- Spin orbit torque nano-oscillators by dipole field-localized spin wave modes
- Effects of delayed feedback on the power spectrum of spin-torque nano-oscillators
- Spin-wave emission with current-controlled frequency by a PMA-based spin-Hall oscillator
- Energy-efficient spin Hall nano-oscillators using near-compensated CoGd ferrimagnets