Cargando…

Design rules for scalability in spin-orbit electronics

Spin-orbit electronics (spin-orbitronics) has been widely discussed for enabling nonvolatile devices that store and process information with low power consumption. The potential of spin-orbitronics for memory and logic applications has been demonstrated by perpendicular anisotropy magnetic devices c...

Descripción completa

Detalles Bibliográficos
Autores principales: Kazemi, Mohammad, Bocko, Mark F.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6760177/
https://www.ncbi.nlm.nih.gov/pubmed/31551427
http://dx.doi.org/10.1038/s41598-019-49831-5
_version_ 1783453825289420800
author Kazemi, Mohammad
Bocko, Mark F.
author_facet Kazemi, Mohammad
Bocko, Mark F.
author_sort Kazemi, Mohammad
collection PubMed
description Spin-orbit electronics (spin-orbitronics) has been widely discussed for enabling nonvolatile devices that store and process information with low power consumption. The potential of spin-orbitronics for memory and logic applications has been demonstrated by perpendicular anisotropy magnetic devices comprised of heavy-metal/ferromagnet or topological-insulator/ferromagnet bilayers, where the heavy metal or topological insulator provides an efficient source of spin current for manipulating information encoded in the bistable magnetization state of the ferromagnet. However, to reliably switch at room temperature, spin-orbit devices should be large to reduce thermal fluctuations, thereby compromising scalability, which in turn drastically increases power dissipation and degrades performance. Here, we show that the scalability is not a fundamental limitation in spin-orbitronics, and by investigating the interactions between the geometry of the ferromagnetic layer and components of the spin-orbit torque, we derive design rules that lead to deeply scalable spin-orbit devices. Furthermore, employing experimentally verified models, we propose deeply scaled spin-orbit devices exhibiting high-speed deterministic switching at room temperature. The proposed design principles are essential for design and implementation of very-large-scale-integration (VLSI) systems that provide high performance operation with low power consumption.
format Online
Article
Text
id pubmed-6760177
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-67601772019-11-12 Design rules for scalability in spin-orbit electronics Kazemi, Mohammad Bocko, Mark F. Sci Rep Article Spin-orbit electronics (spin-orbitronics) has been widely discussed for enabling nonvolatile devices that store and process information with low power consumption. The potential of spin-orbitronics for memory and logic applications has been demonstrated by perpendicular anisotropy magnetic devices comprised of heavy-metal/ferromagnet or topological-insulator/ferromagnet bilayers, where the heavy metal or topological insulator provides an efficient source of spin current for manipulating information encoded in the bistable magnetization state of the ferromagnet. However, to reliably switch at room temperature, spin-orbit devices should be large to reduce thermal fluctuations, thereby compromising scalability, which in turn drastically increases power dissipation and degrades performance. Here, we show that the scalability is not a fundamental limitation in spin-orbitronics, and by investigating the interactions between the geometry of the ferromagnetic layer and components of the spin-orbit torque, we derive design rules that lead to deeply scalable spin-orbit devices. Furthermore, employing experimentally verified models, we propose deeply scaled spin-orbit devices exhibiting high-speed deterministic switching at room temperature. The proposed design principles are essential for design and implementation of very-large-scale-integration (VLSI) systems that provide high performance operation with low power consumption. Nature Publishing Group UK 2019-09-24 /pmc/articles/PMC6760177/ /pubmed/31551427 http://dx.doi.org/10.1038/s41598-019-49831-5 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Kazemi, Mohammad
Bocko, Mark F.
Design rules for scalability in spin-orbit electronics
title Design rules for scalability in spin-orbit electronics
title_full Design rules for scalability in spin-orbit electronics
title_fullStr Design rules for scalability in spin-orbit electronics
title_full_unstemmed Design rules for scalability in spin-orbit electronics
title_short Design rules for scalability in spin-orbit electronics
title_sort design rules for scalability in spin-orbit electronics
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6760177/
https://www.ncbi.nlm.nih.gov/pubmed/31551427
http://dx.doi.org/10.1038/s41598-019-49831-5
work_keys_str_mv AT kazemimohammad designrulesforscalabilityinspinorbitelectronics
AT bockomarkf designrulesforscalabilityinspinorbitelectronics