An Introduction to Spin Wave Computing
Abdulqader Mahmoud,Florin Ciubotaru,Frederic Vanderveken,Andrii V. Chumak,Said Hamdioui,Christoph Adelmann,Sorin Cotofana +6 more
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TLDR
It is argued that spin-wave circuits need to be embedded in conventional CMOS circuits to obtain complete functional hybrid computing systems and the benchmark indicates that hybridspin-wave--CMOS systems promise ultralow-power operation and may ultimately outperform conventionalCMOS circuits in terms of the power-delay-area product.Abstract:
This paper provides a tutorial overview over recent vigorous efforts to develop computing systems based on spin waves instead of charges and voltages Spin-wave computing can be considered as a subfield of spintronics, which uses magnetic excitations for computation and memory applications The tutorial combines backgrounds in spin-wave and device physics as well as circuit engineering to create synergies between the physics and electrical engineering communities to advance the field towards practical spin-wave circuits After an introduction to magnetic interactions and spin-wave physics, all relevant basic aspects of spin-wave computing and individual spin-wave devices are reviewed The focus is on spin-wave majority gates as they are the most prominently pursued device concept Subsequently, we discuss the current status and the challenges to combine spin-wave gates and obtain circuits and ultimately computing systems, considering essential aspects such as gate interconnection, logic level restoration, input-output consistency, and fan-out achievement We argue that spin-wave circuits need to be embedded in conventional CMOS circuits to obtain complete functional hybrid computing systems The state of the art of benchmarking such hybrid spin-wave--CMOS systems is reviewed and the current challenges to realize such systems are discussed The benchmark indicates that hybrid spin-wave--CMOS systems promise ultralow-power operation and may ultimately outperform conventional CMOS circuits in terms of the power-delay-area product Current challenges to achieve this goal include low-power signal restoration in spin-wave circuits as well as efficient spin-wave transducersread more
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The 2021 Magnonics Roadmap.
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TL;DR: The Roadmap on Magnonics as mentioned in this paper is a collection of 22 sections written by leading experts in this field who review and discuss the current status but also present their vision of future perspectives.
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The 2017 terahertz science and technology roadmap
Sukhdeep Dhillon,Miriam S. Vitiello,Edmund H. Linfield,Alexander Giles Davies,Matthias C. Hoffmann,John H. Booske,Claudio Paoloni,Michael Gensch,Peter Weightman,Gwyn P. Williams,Enrique Castro-Camus,David R. S. Cumming,F. Simoens,Ivonne Escorcia-Carranza,James Grant,Stepan Lucyszyn,Makoto Kuwata-Gonokami,Kuniaki Konishi,Martin Koch,Charles A. Schmuttenmaer,Tyler L. Cocker,Rupert Huber,Andrea Markelz,Z. D. Taylor,Vincent P. Wallace,J. Axel Zeitler,Juraj Sibik,Timothy M. Korter,Brian N. Ellison,Suzanne Rea,Paul F. Goldsmith,Ken B. Cooper,Roger Appleby,D. Pardo,Peter G. Huggard,Viktor Krozer,Haymen Shams,Martyn J. Fice,Cyril C. Renaud,Alwyn J. Seeds,Andreas Stohr,Mira Naftaly,Nick M. Ridler,Roland Clarke,John Cunningham,Michael B. Johnston +45 more
TL;DR: The 2017 roadmap of terahertz frequency electromagnetic radiation (100 GHz-30 THz) as discussed by the authors provides a snapshot of the present state of THz science and technology in 2017, and provides an opinion on the challenges and opportunities that the future holds.
Journal ArticleDOI
Electric Field-Induced Modification of Magnetism in Thin-Film Ferromagnets
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