Reservoir computing on spin-torque oscillator array

T Kanao, H Suto, K Mizushima, H Goto, T Tanamoto… - Physical Review …, 2019 - APS
We numerically study reservoir computing on a spin-torque oscillator (STO) array, describing
the magnetization dynamics of the STO array by a nonlinear oscillator model. The STOs …

Extremely coherent microwave emission from spin torque oscillator stabilized by phase locked loop

S Tamaru, H Kubota, K Yakushiji, S Yuasa… - Scientific reports, 2015 - nature.com
Spin torque oscillator (STO) has been attracting a great deal of attention as a candidate for
the next generation microwave signal sources for various modern electronics systems since …

Noise-induced synchronization of spin-torque oscillators

Y Imai, S Tsunegi, K Nakajima, T Taniguchi - Physical Review B, 2022 - APS
Noise-induced synchronization is a phenomenon where several oscillators with different
initial conditions show synchronized motion, even in the absence of a coupling between …

Laser-induced THz magnetization precession for a tetragonal Heusler-like nearly compensated ferrimagnet

S Mizukami, A Sugihara, S Iihama, Y Sasaki… - Applied Physics …, 2016 - pubs.aip.org
Laser-induced magnetization precessional dynamics was investigated in epitaxial films of
Mn 3 Ge, which is a tetragonal Heusler-like nearly compensated ferrimagnet. The …

Magnetization switching probability in the dynamical switching regime driven by spin-transfer torque

T Taniguchi, S Isogami, Y Shiokawa, Y Ishitani… - Physical Review B, 2022 - APS
We study magnetization switching in the dynamical regime for in-plane magnetized systems,
useful for field-free spin-orbit torque switching devices. We derive a formula for the switching …

Synchronization and chaos in a spin-torque oscillator with a perpendicularly magnetized free layer

T Yamaguchi, N Akashi, K Nakajima, S Tsunegi… - Physical Review B, 2019 - APS
Synchronization and chaos caused by alternating current and microwave field in a spin
torque oscillator consisting of a perpendicularly magnetized free layer and an in-plane …

Magnetization reversal condition for a nanomagnet within a rotating magnetic field

T Taniguchi - Physical Review B, 2014 - APS
The reversal condition of magnetization in a nanomagnet under the effect of rotating
magnetic field generated by a microwave is theoretically studied based on the Landau …

Terahertz oscillation in a noncollinear antiferromagnet under spin-orbit torques

DY Zhao, PB He, MQ Cai - Physical Review B, 2021 - APS
We perform a theoretic study on equilibria and self-oscillations of a noncollinear
antiferromagnet under spin-orbit torques and focus on the latter, which may be detected by …

Chaos in spin-torque oscillator with feedback circuit

A Kamimaki, T Kubota, S Tsunegi, K Nakajima… - Physical Review …, 2021 - APS
Excitation of chaotic magnetization dynamics in nanomagnets is of great interest because it
bridges the condensed matter physics and nonlinear science and has a potential to …

Reservoir computing based on spintronics technology

T Taniguchi, S Tsunegi, S Miwa, K Fujii… - Reservoir Computing …, 2021 - Springer
Recent developments in reservoir computing based on spintronics technology are described
here. The rapid growth of brain-inspired computing has motivated researchers working in a …