Route toward high-speed nano-magnonics

Abstract

We study experimentally the possibility to utilize pulses of pure spin current, produced via the nonlocal spin injection mechanism, to generate short packets of spin waves propagating in nanoscale magnetic waveguides. The spatially and time-resolved micro-focus Brillouin light scattering spectroscopy measurements demonstrate that the excitation by spin current results in extremely fast transient response, enabling efficient generation of short spin-wave packets with duration down to a few nanoseconds. The proposed method opens a route for the implementation of high-speed magnonic systems for transmission and processing of information on the nanoscale.

References in corpus (1)

• Resonance Measurement of Nonlocal Spin Torque in a Three-Terminal Magnetic Device

Cited by in corpus (6)

• Magnetization oscillations and waves driven by pure spin currents
• Spin-orbit-torque magnonics
• Magnetic droplet solitons generated by pure spin currents
• Nanoconstriction spin-Hall oscillator with perpendicular magnetic anisotropy
• Dispersionless propagation of ultra-short spin-wave pulses in ultrathin yttrium iron garnet waveguides
• Effects of the dynamical magnetization state on spin transfer