Spin Wave Majority Gates Cascading by Gilbert Damping Embracement (Can the Devil be Turned into an Angel?)

Pantazis Anagnostou, Arne Van Zegbroeck, Said Hamdioui, Christoph Adelmann, Florin Ciubotaru, Sorin Cotofana

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

Recent theoretical and experimental spintronics developments clearly indicate that Spin Waves (SW) interference based Majority gates (MAJ3) open an alternative road towards ultra low-power circuit implementations potentially capable to outperform CMOS counterparts. However, hurdles still exist, e.g., gate cascading, as due to the very nature of SW interference MAJ3 gates are not input output coherent, i.e., produce output waves with different amplitudes corresponding to ‘weak’ and ‘strong’ majority, which precludes their direct cascading within the SW domain. State of the art designs address this issue by means of hybrid SW-CMOS systems that make use on domain converters, which are energy expensive and diminish if not nullify the ultra-low power promise of the SW-based computing paradigm. In this paper we propose a gate cascading technique that rely on the natural SW amplitude decay while propagating through a magnetic conduit. We demonstrate the concept by constructing the building block MAJ3(MAJ3(In1,In2,In3),In4,In5) and verifying its correct behaviour by means of micromagnetic simulations. We evaluate the proposed design in terms of energy consumption, delay, and area, and our calculations indicate that, when compared with its domain conversion counterpart, our proposal consumes 49.5% less energy, at the expense of 48% area and 76.5% delay overhead, respectively.
Original languageEnglish
Title of host publication2024 IEEE 24th International Conference on Nanotechnology, NANO 2024
PublisherIEEE
Pages610-614
Number of pages5
ISBN (Electronic)9798350386240
DOIs
Publication statusPublished - 2024
Event24th IEEE International Conference on Nanotechnology, NANO 2024 - Gijon, Spain
Duration: 8 Jul 202411 Jul 2024

Publication series

NameProceedings of the IEEE Conference on Nanotechnology
ISSN (Print)1944-9399
ISSN (Electronic)1944-9380

Conference

Conference24th IEEE International Conference on Nanotechnology, NANO 2024
Country/TerritorySpain
CityGijon
Period8/07/2411/07/24

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

  • Spin Waves
  • Magnonics
  • Gate Cascading
  • Majority Gate

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