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Cascaded spintronic logic with low-dimensional carbon

Remarkable breakthroughs have established the functionality of graphene and carbon nanotube transistors as replacements to silicon in conventional computing structures, and numerous spintronic logic gates have been presented. However, an efficient cascaded logic structure that exploits electron spin...

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Autores principales: Friedman, Joseph S., Girdhar, Anuj, Gelfand, Ryan M., Memik, Gokhan, Mohseni, Hooman, Taflove, Allen, Wessels, Bruce W., Leburton, Jean-Pierre, Sahakian, Alan V
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5465351/
https://www.ncbi.nlm.nih.gov/pubmed/28580930
http://dx.doi.org/10.1038/ncomms15635
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author Friedman, Joseph S.
Girdhar, Anuj
Gelfand, Ryan M.
Memik, Gokhan
Mohseni, Hooman
Taflove, Allen
Wessels, Bruce W.
Leburton, Jean-Pierre
Sahakian, Alan V
author_facet Friedman, Joseph S.
Girdhar, Anuj
Gelfand, Ryan M.
Memik, Gokhan
Mohseni, Hooman
Taflove, Allen
Wessels, Bruce W.
Leburton, Jean-Pierre
Sahakian, Alan V
author_sort Friedman, Joseph S.
collection PubMed
description Remarkable breakthroughs have established the functionality of graphene and carbon nanotube transistors as replacements to silicon in conventional computing structures, and numerous spintronic logic gates have been presented. However, an efficient cascaded logic structure that exploits electron spin has not yet been demonstrated. In this work, we introduce and analyse a cascaded spintronic computing system composed solely of low-dimensional carbon materials. We propose a spintronic switch based on the recent discovery of negative magnetoresistance in graphene nanoribbons, and demonstrate its feasibility through tight-binding calculations of the band structure. Covalently connected carbon nanotubes create magnetic fields through graphene nanoribbons, cascading logic gates through incoherent spintronic switching. The exceptional material properties of carbon materials permit Terahertz operation and two orders of magnitude decrease in power-delay product compared to cutting-edge microprocessors. We hope to inspire the fabrication of these cascaded logic circuits to stimulate a transformative generation of energy-efficient computing.
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spelling pubmed-54653512017-06-22 Cascaded spintronic logic with low-dimensional carbon Friedman, Joseph S. Girdhar, Anuj Gelfand, Ryan M. Memik, Gokhan Mohseni, Hooman Taflove, Allen Wessels, Bruce W. Leburton, Jean-Pierre Sahakian, Alan V Nat Commun Article Remarkable breakthroughs have established the functionality of graphene and carbon nanotube transistors as replacements to silicon in conventional computing structures, and numerous spintronic logic gates have been presented. However, an efficient cascaded logic structure that exploits electron spin has not yet been demonstrated. In this work, we introduce and analyse a cascaded spintronic computing system composed solely of low-dimensional carbon materials. We propose a spintronic switch based on the recent discovery of negative magnetoresistance in graphene nanoribbons, and demonstrate its feasibility through tight-binding calculations of the band structure. Covalently connected carbon nanotubes create magnetic fields through graphene nanoribbons, cascading logic gates through incoherent spintronic switching. The exceptional material properties of carbon materials permit Terahertz operation and two orders of magnitude decrease in power-delay product compared to cutting-edge microprocessors. We hope to inspire the fabrication of these cascaded logic circuits to stimulate a transformative generation of energy-efficient computing. Nature Publishing Group 2017-06-05 /pmc/articles/PMC5465351/ /pubmed/28580930 http://dx.doi.org/10.1038/ncomms15635 Text en Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Friedman, Joseph S.
Girdhar, Anuj
Gelfand, Ryan M.
Memik, Gokhan
Mohseni, Hooman
Taflove, Allen
Wessels, Bruce W.
Leburton, Jean-Pierre
Sahakian, Alan V
Cascaded spintronic logic with low-dimensional carbon
title Cascaded spintronic logic with low-dimensional carbon
title_full Cascaded spintronic logic with low-dimensional carbon
title_fullStr Cascaded spintronic logic with low-dimensional carbon
title_full_unstemmed Cascaded spintronic logic with low-dimensional carbon
title_short Cascaded spintronic logic with low-dimensional carbon
title_sort cascaded spintronic logic with low-dimensional carbon
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5465351/
https://www.ncbi.nlm.nih.gov/pubmed/28580930
http://dx.doi.org/10.1038/ncomms15635
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