Three port logic gate using forward volume spin wave interference in a thin yttrium iron garnet film

Goto, Taichi; Yoshimoto, Takuya; Iwamoto, Bungo; Shimada, Kazuko; Ross, Caroline A.; Sekiguchi, Koji; Granovsky, A. B.; Nakamura, Yūichi; Uchida, Hironaga; Inoue, M.

doi:10.1038/s41598-019-52889-w

Cited by 35 publications

(27 citation statements)

References 79 publications

(78 reference statements)

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“…It not only allows for easy scalability of spin waves by reducing their size by 2 orders of magnitude but it also enables magnonic devices to function around corners further reducing their potential size. For example, it is conceivable to realize a spin wave majority gate , on the scale of a few micrometers using a coherent spin wave beam as input. Moreover, the anisotropic dispersion relation allows the device to work at two different wavelengths while maintaining equal frequencies.…”

Section: Resultsmentioning

confidence: 99%

Building Blocks for Magnon Optics: Emission and Conversion of Short Spin Waves

et al. 2020

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Magnons have proven to be a promising candidate for low-power wave-based computing. The ability to encode information not only in amplitude but also in phase allows for increased data transmission rates. However, efficiently exciting nanoscale spin waves for a functional device requires sophisticated lithography techniques and therefore, remains a challenge. Here, we report on a method to measure the full spin wave isofrequency contour for a given frequency and field. A single antidot within a continuous thin film excites wave vectors along all directions within a single excitation geometry. Varying structural parameters or introducing Dzyaloshinskii–Moriya interaction allows the manipulation and control of the isofrequency contour, which is desirable for the fabrication of future magnonic devices. Additionally, the same antidot structure is utilized as a multipurpose spin wave device. Depending on its position with respect to the microstrip antenna, it can either be an emitter for short spin waves or a directional converter for incoming plane waves. Using simulations we show that such a converter structure is capable of generating a coherent spin wave beam. By introducing a short wavelength spin wave beam into existing magnonic gate logic, it is conceivable to reduce the size of devices to the micrometer scale. This method gives access to short wavelength spin waves to a broad range of magnonic devices without the need for refined sample preparation techniques. The presented toolbox for spin wave manipulation, emission, and conversion is a crucial step for spin wave optics and gate logic.

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Section: Resultsmentioning

confidence: 99%

Building Blocks for Magnon Optics: Emission and Conversion of Short Spin Waves

et al. 2020

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“…This study started the development of all-electrical SW spectroscopy based on the broad-band vector-network analyzer ferromagnetic resonance (VNA-FMR) measurements, now widely used in magnonics, also, to realize some functional magnonic elements. Later, thin YIG lm with three CPWs was used to demonstrate XNOR logic gate [98]. Although the magnetization of YIG is much lower than that of Py, the ultralow damping in the former material made it ideal for magnonic applications.…”

Section: Ferromagnetic Lm Magnetized Along Out-of-plane Directionmentioning

confidence: 99%

Spin dynamics in patterned magnetic multilayers with perpendicular magnetic anisotropy

Zelent

Gruszecki

Moalic

et al. 2022

Solid State Physics

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“…Moreover, the phase of spin wave provides additional degrees of freedom (beyond amplitude) to code information, and the features of waves (de/constructive interference, diffraction, etc.) simplify the design structure of wave-based logic gates [6], [12], [13]. Furthermore, the GHz to THz frequency range, the nanoscale wavelength, which is limited downwards only by the lattice constant of the magnetic material used, and the pronounced versatile nonlinear spin-wave phenomena are unique features compared to acoustic waves, and electromagnetic microwaves [14], [15], [16], [17], which makes them promising for Boolean and unconventional (e.g.…”

Section: Introductionmentioning

confidence: 99%

Numerical Model for 32-Bit Magnonic Ripple Carry Adder

Garlando

Wang

Dobrovolskiy

et al. 2023

IEEE Trans. Emerg. Topics Comput.

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In CMOS-based electronics, the most straightforward way to implement a summation operation is to use the ripple carry adder (RCA). Magnonics, the field of science concerned with data processing by spin waves and their quanta magnons, recently proposed a magnonic half-adder that can be considered as the simplest magnonic integrated circuit. Here, we develop a computation model for the magnonic basic blocks to enable the design and simulation of magnonic gates and magnonic circuits of arbitrary complexity and demonstrate its functionality on the example of a 32-bit integrated RCA. It is shown that the RCA requires the utilization of additional regenerators based on magnonic directional couplers with embedded amplifiers to normalize the magnon signals in-between the half-adders. The benchmarking of large-scale magnonic integrated circuits is performed. The energy consumption of 30 nm-based magnonic 32-bit adder can be as low as 961 aJ per operation with taking into account all required amplifiers.

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Three port logic gate using forward volume spin wave interference in a thin yttrium iron garnet film

Cited by 35 publications

References 79 publications

Building Blocks for Magnon Optics: Emission and Conversion of Short Spin Waves

Building Blocks for Magnon Optics: Emission and Conversion of Short Spin Waves

Spin dynamics in patterned magnetic multilayers with perpendicular magnetic anisotropy

Numerical Model for 32-Bit Magnonic Ripple Carry Adder

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