English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Low frequency noise close to the carrier remains little explored in spintorque nano oscillators. However, it is crucial to investigate as it limits theoscillator's frequency stability. This work addresses the low offset frequencyflicker noise of a TMR-based spin-torque vortex oscillator in the regime oflarge amplitude steady oscillations. We first phenomenologically expand thenonlinear auto-oscillator theory aiming to reveal the properties of this noise.We then present a thorough experimental study of the oscillator's $1/f$ flickernoise and discuss the results based on the theoretical predictions. Hereby, weconnect the oscillator's nonlinear dynamics with the concept of flicker noiseand furthermore refer to the influence of a standard $1/f$ noise descriptionbased on the Hooge formula, taking into account the non-constant magneticoscillation volume, which contributes to the magnetoresistance.

Low offset frequency $1/f$ flicker noise in spin torque vortex oscillators