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 language | English |
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Title of host publication | 2024 IEEE 24th International Conference on Nanotechnology, NANO 2024 |
Publisher | IEEE |
Pages | 610-614 |
Number of pages | 5 |
ISBN (Electronic) | 9798350386240 |
DOIs | |
Publication status | Published - 2024 |
Event | 24th IEEE International Conference on Nanotechnology, NANO 2024 - Gijon, Spain Duration: 8 Jul 2024 → 11 Jul 2024 |
Publication series
Name | Proceedings of the IEEE Conference on Nanotechnology |
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ISSN (Print) | 1944-9399 |
ISSN (Electronic) | 1944-9380 |
Conference
Conference | 24th IEEE International Conference on Nanotechnology, NANO 2024 |
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Country/Territory | Spain |
City | Gijon |
Period | 8/07/24 → 11/07/24 |
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-careOtherwise 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