Spin-Torque and Spin-Hall Nano-Oscillators

By Tingsu Chen, Randy K. Dumas, Anders Eklund, Pranaba Kishor Muduli, Afshin Houshang, Ahmad A. Awad, Philipp Durrenfeld, B. Gunnar Malm, Ana Rusu, Johan Åkerman. Proceedings of the IEEE, 2015

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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.

Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/c191220e9ee7d739e97cd9ab87d40fcff5ee735e