Vertical Spin-Wave Transport in Magnonic Waveguides With Broken Translation Symmetry

Martyshkin, A. A.; Бегинин, Е. Н.; Stognij, Alexandr I.; Никитов, С. А.; Садовников, А. В.

doi:10.1109/lmag.2019.2957264

Cited by 8 publications

(2 citation statements)

References 36 publications

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“…To assemble functional magnonic units in the multilevel networks, inter-junctions between functional blocks placed on the different layers of the joint magnonic circuitry are required. The concept of 3D magnonics looks promising in this respect, demonstrating the numerous solutions of the realization of vertical interconnects [261]. In particular, the simplest type of interconnects , i. e. a stripe of ferromagnetic material (called the SW bus) could be realized using the part of the unit cell of meander-shaped waveguide.…”

Section: G 3d Magnonic Crystals and Interconnectsmentioning

confidence: 99%

Advances in Magnetics Roadmap on Spin-Wave Computing

et al. 2022

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Magnonics addresses the physical properties of spin waves and utilizes them for data processing. Scalability down to atomic dimensions, operation in the GHz-to-THz frequency range, utilization of nonlinear and nonreciprocal phenomena, and compatibility with CMOS are just a few of many advantages offered by magnons. Although magnonics is still primarily positioned in the academic domain, the scientific and technological challenges of the field are being extensively investigated, and many proof-of-concept prototypes have already been realized in laboratories. This roadmap is a product of the collective work of many authors that covers versatile spin-wave computing approaches, conceptual building blocks, and underlying physical phenomena. In particular, the roadmap discusses the computation operations with Boolean digital data, unconventional approaches like neuromorphic computing, and the progress towards magnon-based quantum computing. The article is organized as a collection of sub-sections grouped into seven large thematic sections. Each sub-section is prepared by one or a group of authors and concludes with a brief description of current challenges and the outlook of further development for each research direction.

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Section: G 3d Magnonic Crystals and Interconnectsmentioning

confidence: 99%

Advances in Magnetics Roadmap on Spin-Wave Computing

et al. 2022

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“…13,14,15 The interest in vertically coupled magnetic structures follows a similar trend in CMOS electronics, 16 where it enables a transition from two-dimensional to three-dimensional architecture and also provides a possible roadmap for further scaling. 17,18 The advantages of 3D over 2D magnetic systems are also related to the different areas of research including physics effects and potential applications. 19 For example, one can explore unidirectional SW propagation, indirect band gaps 20 or curvature-induced novel dynamic effects.…”

Section: Introductionmentioning

confidence: 99%

Magnonic Band Structure in Vertical Meander-Shaped Co40 Fe40
Gubbiotti
¹
,
Садовников
²
,
Бегинин
³

et al. 2021
Phys. Rev. Applied
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23
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6
0
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The dispersion of spin waves in vertical meander-shaped CoFeB thin films consisting of segments located at 90° angles with respect to each other is investigated by Brillouin light scattering spectroscopy. We reveal the periodic character of several dispersive branches as well as alternating frequency ranges where spin waves are allowed or forbidden to propagate. Noteworthy is the presence of the frequency band gaps between each couple of successive modes only for wave numbers k=nπ/a, where n is an even integer number and a is the size of the meander unit cell, whereas the spectra show propagating modes in the orthogonal film segments for the other wavenumbers. The micromagnetic simulations and analytical calculations allow us to understand and explain the results in terms of the mode spatial localization and symmetry. The obtained results demonstrate the wave propagation in three dimensions opening the path for multi-level magnonic architectures for signal processing.

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Magnonic band structure in CoFeB/Ta/NiFe meander-shaped magnetic bilayers

Gubbiotti

Садовников

Бегинин

et al. 2021

Applied Physics Letters

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In this work, we investigate the spin-wave propagation in three-dimensional nanoscale CoFeB/Ta/NiFe meander structures fabricated on a structured SiO2/Si substrate. The magnonic band structure has been experimentally determined by wavevector-resolved Brillouin light scattering (BLS) spectroscopy and a set of stationary modes interposed by two dispersive modes of Bloch type have been identified. The results could be understood by micromagnetic and finite element simulations of the mode distributions in both real space and the frequency domain. The dispersive modes periodically oscillate in frequency over the Brillouin zones and correspond to modes, whose spatial distributions extend over the entire sample and are either localized exclusively in the CoFeB layer or the entire CoFeB/Ta/NiFe magnetic bilayer. Stationary modes are mainly concentrated in the vertical segments of the CoFeB and NiFe layers and show negligible amplitudes in the horizontal segments.The findings are compared with those of single-layer CoFeB meander structures with the same geometry parameters, which reveals the influence of the dipolar coupling between the two ferromagnetic layers on the magnonic band structure.

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Vertical Spin-Wave Transport in Magnonic Waveguides With Broken Translation Symmetry

Cited by 8 publications

References 36 publications

Advances in Magnetics Roadmap on Spin-Wave Computing

Advances in Magnetics Roadmap on Spin-Wave Computing

Magnonic Band Structure in Vertical Meander-Shaped Co40 Fe40
Gubbiotti
¹
,
Садовников
²
,
Бегинин
³

et al. 2021
Phys. Rev. Applied
Self Cite
23
0
6
0
View full text Add to dashboard Cite

Magnonic band structure in CoFeB/Ta/NiFe meander-shaped magnetic bilayers

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Vertical Spin-Wave Transport in Magnonic Waveguides With Broken Translation Symmetry

Cited by 8 publications

References 36 publications

Advances in Magnetics Roadmap on Spin-Wave Computing

Advances in Magnetics Roadmap on Spin-Wave Computing

Magnonic Band Structure in Vertical Meander-Shaped Co40 Fe40 Gubbiotti1, Садовников2, Бегинин3 et al. 2021Phys. Rev. AppliedSelf Cite23060View full textAdd to dashboardCite

Magnonic band structure in CoFeB/Ta/NiFe meander-shaped magnetic bilayers

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About

Magnonic Band Structure in Vertical Meander-Shaped Co40 Fe40
Gubbiotti
¹
,
Садовников
²
,
Бегинин
³

et al. 2021
Phys. Rev. Applied
Self Cite
23
0
6
0
View full text Add to dashboard Cite