Parallel Read-Out and Database Search With Magnonic Holographic Memory

Gertz, Frederick; Kozhevnikov, A. V.; Khivintsev, Yu. V.; Dudko, G. M.; Ranjbar, Mahdy; Montes, D.; Chiang, Howard; Filimonov, Yu. A.; Khitun, Alexander

doi:10.1109/tmag.2016.2541090

Cited by 10 publications

(9 citation statements)

References 17 publications

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“…Many other applications, not just Boolean computing, can benefit from these types of transducers. Interference-based devices are well suited to implementing certain mathematical operations and algorithms, such as Fourier transforms 7 , prime factorization 8 , parallel data processing 9 , 10 , and pattern recognition 11 . Moreover, scalable and efficient inductive transducers would enable on-chip microwave components, such as tunable and programmable filters for radio front-ends, true-time delays, signal to noise enhancers (SNEs) and frequency selective limiters (FSLs) 12 .…”

Section: Introductionmentioning

confidence: 99%

Efficient electromagnetic transducers for spin-wave devices

Connelly

Csaba

Aquino

et al. 2021

Sci Rep

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This paper presents a system-level efficiency analysis, a rapid design methodology, and a numerical demonstration of efficient sub-micron, spin-wave transducers in a microwave system. Applications such as Boolean spintronics, analog spin-wave-computing, and magnetic microwave circuits are expected to benefit from this analysis and design approach. These applications have the potential to provide a low-power, magnetic paradigm alternative to modern electronic systems, but they have been stymied by a limited understanding of the microwave, system-level design for spin-wave circuits. This paper proposes an end-to-end microwave/spin-wave system model that permits the use of classical microwave network analysis and matching theory towards analyzing and designing efficient transduction systems. This paper further compares magnetostatic-wave transducer theory to electromagnetic simulations and finds close agreement, indicating that the theory, despite simplifying assumptions, is useful for rapid yet accurate transducer design. It further suggests that the theory, when modified to include the exchange interaction, will also be useful to rapidly and accurately design transducers launching magnons at exchange wavelengths. Comparisons are made between microstrip and co-planar waveguide lines, which are expedient, narrowband, and low-efficiency transducers, and grating and meander lines that are capable of high-efficiency and wideband performance. The paper concludes that efficient microwave-to-spin-wave transducers are possible and presents a meander transducer design on YIG capable of launching $$\varvec{\lambda = 500}\,$$ λ = 500 nm spin waves with an efficiency of − 4.45 dB and a 3 dB-bandwidth of 134 MHz.

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Section: Introductionmentioning

confidence: 99%

Efficient electromagnetic transducers for spin-wave devices

Connelly

Csaba

Aquino

et al. 2021

Sci Rep

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“…VI. While less universal than digital systems, these concepts take particular advantage of the wave nature of spin waves and can be very efficient for specific tasks such as signal and data processing, 153,404,405 prime factorization, 406,407 or Fourier transforms. 408 Pioneering work on wave-based computing in the 1970s and 1980s has used photons to develop optical computers.…”

Section: A Unconventional and Analog Computing Approachesmentioning

confidence: 99%

“…In such a structure, all inputs directly affect all outputs, which can be used for parallel data processing. 151,153,404,405,408 Cellular nonlinear networks are structurally similar to magnonic holographic memories and consists also of an array of magnetic waveguides. 151 By contrast, active transducers at every waveguide crosspoint can be used to locally manipulate the magnetization.…”

Section: A Unconventional and Analog Computing Approachesmentioning

confidence: 99%

Introduction to Spin Wave Computing

Mahmoud¹,

Ciubotaru²,

Vanderveken³

et al. 2021

Preprint

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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 transducers.

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“…VI. While less universal than digital systems, these concepts take particular advantage of the wave nature of spin waves and can be very efficient for specific tasks such as signal and data processing, 151,380,381 prime factorization, 382,383 or Fourier transforms. 384 Pioneering work on wave-based computing in the 1970s and 1980s has used photons to develop optical computers.…”

Section: Spin-wave Applications Beyond Logic Gates a Unconventional A...mentioning

confidence: 99%

An Introduction to Spin Wave Computing

Mahmoud,

Ciubotaru,

Vanderveken

et al. 2020

Preprint

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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 spinwave 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 transducers.

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Parallel Read-Out and Database Search With Magnonic Holographic Memory

Cited by 10 publications

References 17 publications

Efficient electromagnetic transducers for spin-wave devices

Efficient electromagnetic transducers for spin-wave devices

Introduction to Spin Wave Computing

An Introduction to Spin Wave Computing

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