Bilayer-Skyrmion-Based Design of Neuron and Synapse for Spiking Neural Network

Das, Debasis; Cen, Yunuo; Wang, Jianze; Fong, Xuanyao

doi:10.1103/physrevapplied.19.024063

Cited by 20 publications

(2 citation statements)

References 46 publications

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“…Furthermore, they can be driven by low electric currents or gate voltage [4,5], thermal gradients [6], anisotropy gradients [7], strain gradients [8], and surface acoustic waves [9]. Therefore, they could be promising candidates for data storage, spintronics devices [10,11], memory devices [12], logic gates [13][14][15], neuromorphic computing [16,17], and microwave detectors [18].…”

Section: Introductionmentioning

confidence: 99%

Stabilization and helicity control of hybrid magnetic skyrmion

Akhir,

Suprayoga,

Cahaya

2024

J. Phys. D: Appl. Phys.

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The hybrid skyrmion, a type of magnetic skyrmion with intermediate helicity between Bloch and N'eel skyrmion, has gained more attraction. It is tolerant toward the skyrmion Hall effect and a potential candidate for quantum bits. We investigated the stabilization and helicity control of the hybrid skyrmion in a two-dimensional magnetic system using an analytical model and micromagnetic simulation. We look at the interplaying factors of the bulk ($D_b$) and interfacial ($D_i$) Dzyaloshinskii-Moriya interactions (DMI) along with the dipolar interaction. We show that the hybrid skyrmion can stabilize through the interplay between interfacial DMI and either bulk DMI or dipolar interaction. We can also control the helicity of the hybrid skyrmion by tuning the ratio of $D_i/D_b$ when there is no dipolar interaction, or simply by adjusting the $D_i$ when the $D_b$ is absent. Our results suggest that hybrid skyrmions can exist within $0 < |D_i| < 0.4$ mJ/m$^2$ for Co-based magnetic systems.

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Section: Introductionmentioning

confidence: 99%

Stabilization and helicity control of hybrid magnetic skyrmion

Akhir,

Suprayoga,

Cahaya

2024

J. Phys. D: Appl. Phys.

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show abstract

“…For example, the repulsion force between antiferromagnetic skyrmions and their mobility properties has been researched to successfully realize the function of artificial neurons. 30,31 However, artificial neurons based on the movement of skyrmions motivated by the spin current inevitably encounter the problem of integration and power consumption. Regulation of the skyrmion state is a novel idea to design neuron devices.…”

Section: Introductionmentioning

confidence: 99%