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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TL;DR: The 2017 roadmap of terahertz frequency electromagnetic radiation (100 GHz-30 THz) as mentioned in this paper 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.
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Ferromagnetic resonance linewidth in metallic thin films: Comparison of measurement methods | NIST
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TL;DR: In this article, the linewidth of a series of Permalloy films with thicknesses of 50 and 100nm was measured using linear function of frequency, with a slope that corresponds to a nominal Landau-Lifshitz phenomenological damping parameter α value of 0.007 and zero frequency intercepts in the 160-320A∕m (2-4Oe) range.
Cascaded Logic Gates in Nanophotonic Plasmon Networks
TL;DR: It is demonstrated that a plasmonic binary NOR gate, a 'universal logic gate', can be realized through cascaded OR and NOT gates in four-terminal plasMonic nanowire networks.
Journal ArticleDOI
The 2021 Magnonics Roadmap.
Anjan Barman,Gianluca Gubbiotti,Sam Ladak,A. O. Adeyeye,Maciej Krawczyk,Joachim Gräfe,Christoph Adelmann,Sorin Cotofana,Azad Naeemi,Vitaliy I. Vasyuchka,Burkard Hillebrands,Sergey A. Nikitov,H. Yu,Dirk Grundler,A. V. Sadovnikov,A. A. Grachev,Svetlana E. Sheshukova,J. Y. Duquesne,M. Marangolo,György Csaba,Wolfgang Porod,Vladislav E. Demidov,Sergei Urazhdin,Sergej O. Demokritov,Edoardo Albisetti,Daniela Petti,Riccardo Bertacco,Helmut Schultheiss,Helmut Schultheiss,V. V. Kruglyak,V. D. Poimanov,Sourav Sahoo,Jaivardhan Sinha,Hyunsoo Yang,Markus Münzenberg,Takahiro Moriyama,Shigemi Mizukami,P. Landeros,P. Landeros,R. A. Gallardo,R. A. Gallardo,Giovanni Carlotti,Joo-Von Kim,Robert Stamps,Robert E. Camley,Bivas Rana,Yoshichika Otani,Weichao Yu,Tao Yu,Gerrit E. W. Bauer,Gerrit E. W. Bauer,Christian H. Back,Götz S. Uhrig,Oleksandr V. Dobrovolskiy,B. Budinska,Huajun Qin,S. van Dijken,Andrii V. Chumak,Alexander Khitun,Dmitri E. Nikonov,I. A. Young,Benjamin Zingsem,Michael Winklhofer +62 more
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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