Synchronization of Spin Torque Oscillators through Spin Hall Magnetoresistance

2017/05/16 by Tomohiro Taniguchi
Engineering · Physics and Astronomy · #Advanced Memory and Neural Computing #Condensed matter physics #Coupling (piping) #Electrical engineering #Electron #Engineering #Hall effect #Magnetic field #Magnetic properties of thin films #Magnetization #Magnetoresistance #Materials science #Phase (matter) #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Spin (aerodynamics) #Spin Hall effect #Spin polarization #Spin-transfer torque #Synchronization (alternating current) #Topology (electrical circuits) #Torque #cond-mat.mes-hall #cond-mat.mtrl-sci #nlin.AO

paper · pdf · doi:10.1109/tmag.2017.2704588

published as IEEE Trans. Magn. 53, 3400907 (2017) · 7 pages, 5 figures, published as a conference proceeding of Intermag 2017

openalex publication_date 2017/05/16 · arxiv created 2017/10/24 · arxiv updated 2017/10/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Spin torque oscillators placed onto a nonmagnetic heavy metal show synchronized auto-oscillations due to the coupling originating from spin Hall magnetoresistance effect. Here, we study a system having two-spin torque oscillators under the effect of the spin Hall torque, and show that switching the external current direction enables us to control the phase difference of the synchronization between in-phase and antiphase.

Citations

• Current-driven excitation of magnetic multilayers
• Field dependence of magnetization reversal by spin transfer
• Microwave oscillations of a nanomagnet driven by a spin-polarized current
• Spin Hall Magnetoresistance Induced by a Nonequilibrium Proximity Effect
• Spin Hall Magnetoresistance in Metallic Bilayers