Injection locking at 2f of spin torque oscillators under influence of thermal noise

2017/06/19 by M. Tortarolo, B. Lacoste, Tortarolo, M. +17 · 2 citations
Engineering · Physics and Astronomy · #Advancements in Semiconductor Devices and Circuit Design #Applied Physics (physics.app-ph) #FOS: Physical sciences #Magnetic properties of thin films #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Quantum and electron transport phenomena

paper · pdf · doi:10.48550/arxiv.1706.05998

openalex publication_date 2017/06/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Experiments, numerical simulations and an analytic model were developed to elucidate the effects of noise in the synchronized state of a tunnel junction based spin torque nano oscillator (STNO). It is demonstrated that in the in plane magnetized structure, while the frequency is locked, much higher reference currents are needed to reduce the noise by phase locking. Our analysis shows that it is possible to control the phase noise by the reference microwave current (IRF) and that it can be further reduced by increasing the bias current (IDC) of the oscillator, keeping the reference current in feasible limits for applications.

Cited by

• Injection dynamics in spin-wave active ring oscillator (SWARO)
• Adaptive Ising machine based on phase-locking of an auto-oscillator to a bi-harmonic external driving with noise

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