Ultra-fast logic devices using artificial “neurons” based on antiferromagnetic pulse generators
Abstract
It has been shown previously that spin-Hall oscillators based on current-driven bi-layered film structures containing an antiferromagnet (AFM) and a normal metal can generate ultra-short (∼2 ps) “spike-like” pulses in response to an external current stimulus of a sufficient amplitude, thus operating as ultra-fast artificial “neurons.” Here, we report the results of numerical simulations demonstrating that a single AFM “neuron” can perform the logic functions of or, and, majority, or q-gates, while a circuit consisting of a small number n<5 of AFM “neurons” can function as a full-adder or as a dynamic memory loop with variable clock frequency. The clock frequencies of such AFM-based logic devices could reach tens of GHz, which make them promising as base elements of future ultra-fast high-efficiency neuromorphic computing.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Sep 27, 2018
- Source ID
- 10.1063/1.5042348
Entities
People
- Andrei Slavin
- Ivan V Lisenkov
- Johan Åkerman
- O. R. Sulymenko
- Oleksandr Prokopenko
- Roman Khymyn
- Vasil Tiberkevich
Organizations
- Defense Advanced Research Projects Agency
- Knut and Alice Wallenberg Foundation
- National Science Foundation
- Northeastern University
- Oakland University
- Royal Institute of Technology
- Taras Shevchenko National University of Kyiv
- University of Gothenburg