Propagation of spin waves through a Néel domain wall

Wojewoda, Ondřej; Hula, Tobias; Flajšman, Lukáš; Vaňatka, Marek; Gloss, Jonáš; Holobrádek, J.; Staňo, Michal; Stienen, Sven; Körber, Lukas; Schultheiß, Katrin; Schmid, Michael; Schultheiß, Helmut; Urbánek, Michal

doi:10.1063/5.0013692

Cited by 25 publications

(9 citation statements)

References 30 publications

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“…A deep analysis of the process in the upper vertex DW when the SW is propagated helps to understand this effects: for the high transmission angle range, the SWs experiments a phase shift close to π/2 (marked in red in Fig. 3b), which is in agreement with some mechanical systems in resonance and previous recorded phase-shifts in Néel-type DWs [16].…”

Section: Propagation Of the Edge Spin Wavessupporting

confidence: 87%

Edge spin wave transmission through a vertex domain wall in triangular dots

Caso¹,

Aliev²

2022

Preprint

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Spin waves (SWs), being usually reflected by domain walls, could also be channeled along them. Edge domain walls yield the interesting, and potentially applicable to real devices property of broadband spin waves confinement to the edges of the structure. Here we investigate through numerical simulations the propagation of quasi one-dimensional spin waves in triangle-shaped amorphous YIG (Y3F e5O12) micron sized ferromagnets as a function of the angle aperture. The edge spin waves (ESWs) have been propagated over the corner in triangles of 2 microns side with a fixed thickness of 85 nm. Parameters such as superior vertex angle (in the range of 40 • -75 • ) and applied magnetic field have been optimized in order to obtain a higher transmission coefficient of the ESWs over the triangle vertex. We observed that for a certain aperture angle for which dominated ESW frequency coincides with one of the localised DW modes, the transmission is maximized near one and the phase shift drops to π/2 indicating resonant transmission of ESWs through the upper corner. We compare the obtained results with existing theoretical models. These results could contribute to the development of novel basic elements for spin wave computing.

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Section: Propagation Of the Edge Spin Wavessupporting

confidence: 87%

Edge spin wave transmission through a vertex domain wall in triangular dots

Caso¹,

Aliev²

2022

Preprint

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“…The SWs propagation across a 180° Neel-type DW, instead, was investigated by O. Wojewoda et al [77] A symmetric 180° Neel DW with a circular Bloch line (vortex) in the middle was stabilized in a waveguide patterned in a Fe78Ni22 film grown on a Cu (001) single crystal substrate (Figure 14 (a)-(c)). In order to have a stable DW at remanence and allow SW propagation in DE configuration, the waveguide was prepared with the long axis perpendicular to the easy direction of the Fe78Ni22 film.…”

Section: Interaction and Manipulation Of Spin Wavesmentioning

confidence: 99%

Review on magnonics with engineered spin textures

Petti¹,

Tacchi²,

Albisetti³

2022

J. Phys. D: Appl. Phys.

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Spin textures, such as non-uniform domain arrangements, domain walls and skyrmions are naturally occurring structures in magnetic materials. Recently, the unique properties of spin textures such as their reconfigurability, stability and scalability towards nanoscale dimensions, has sparkled the interests towards their use as active elements in spintronic devices. In the framework of magnonics, which aims to use spin waves for carrying and processing information, using spin textures allows to harness an extremely rich phenomenology for designing new functionalities. In this review, we focus on the recent developments on the control and stabilization of engineered spin textures, and their applications in the field of magnonics. First, we introduce the main techniques used for stabilizing the spin textures and controlling their properties. Then we review the recent results on the use of engineered spin textures for guiding, emitting and manipulating spin waves, and the recent proposals on the realization of complex functionalities using integrated spin-texture-based systems, which hint to possible future directions for technological prospects.

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“…It has been recently demonstrated that in this system, spin waves can propagate in favorable Damon-Eshbach mode with high group velocities reaching almost 6 km/s in orthogonally magnetised waveguides without the necessity of applying the external magnetic fields [199]. The magnetic anisotropy can also be used to stabilize various spin structures unachievable in common material systems, and these spin structures can be further used to control spin-wave propagation [200].…”

Section: F Spin-wave Propagation In Materials With Locally Controlled...mentioning

confidence: 98%

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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Propagation of spin waves through a Néel domain wall

Cited by 25 publications

References 30 publications

Edge spin wave transmission through a vertex domain wall in triangular dots

Edge spin wave transmission through a vertex domain wall in triangular dots

Review on magnonics with engineered spin textures

Advances in Magnetics Roadmap on Spin-Wave Computing

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