Spin-Torque and Spin-Hall Nano-Oscillators

TL;DR

This paper reviews the physics, implementations, properties, and potential applications of spin-torque and spin Hall effect nano-oscillators, highlighting their capabilities and integration prospects in advanced electronic systems.

Contribution

It provides a comprehensive overview of the current state, functional characteristics, and application potential of spin-torque and spin Hall nano-oscillators.

Findings

Different implementations exhibit wide frequency ranges.

These oscillators show promising phase noise and modulation capabilities.

Potential applications include microwave sources, detectors, and neuromorphic computing.

Abstract

This paper reviews the state of the art in spin-torque and spin Hall effect driven nano-oscillators. After a brief introduction to the underlying physics, the authors discuss different implementations of these oscillators, their functional properties in terms of frequency range, output power, phase noise, and modulation rates, and their inherent propensity for mutual synchronization. Finally, the potential for these oscillators in a wide range of applications, from microwave signal sources and detectors to neuromorphic computation elements, is discussed together with the specific electronic circuitry that has so far been designed to harness this potential.