Spintronic diodes (STDs) are emerging as a technology for the realization of high-performance microwave detectors. The key advantages of such devices are their high sensitivity, capability to work at low input power, and compactness. In this work, we show a possible use of STDs for neuromorphic computing expanding the realm of their functionalities to implement analog multiplication, which is a key operation in convolutional neural networks (CNN). In particular, we introduce the concept of degree of rectification (DOR) in injection-locked STDs. Micromagnetic simulations are used to design and identify the working range of the STDs for the implementation of the DOR. Previous experimental data confirm the applicability of the proposed solution, which is tested in image processing and in a CNN that recognizes handwritten digits.
@article{arxiv.2201.04724,
title = {Computing with injection-locked spintronic diodes},
author = {Luciano Mazza and Vito Puliafito and Eleonora Raimondo and Anna Giordano and Zhongming Zeng and Mario Carpentieri and Giovanni Finocchio},
journal= {arXiv preprint arXiv:2201.04724},
year = {2022}
}
Comments
21 pages, 6 figures, supplemental material includes 4 figures