Nanofluidic logic based on chiral skyrmion flows

Particle-like chiral magnetic skyrmions can flow in nanotracks and behave like chiral fluids. Using interacting flows to perform logical operations is an important topic in microfluidics and nanofluidics. Here, we report a basic nanofluidic logic computing system based on chiral magnetic skyrmions flowing in parallel pipelines connected by an H-shaped junction. The flow behaviors could be manipulated by adjusting the spin polarization angle, which controls the intrinsic skyrmion Hall angle. We demonstrate that within certain range of the spin polarization angle, fully developed skyrmion flows could lead to fluidic logical operations, which significantly reduce the complexity of skyrmion logic as there is no need for deterministic creation, precise control, and detection of a single isolated skyrmion. Our results suggest that the chiral flow behaviors of magnetic quasiparticles may offer possibilities for spintronic and nanofluidic functions.

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Publication Details

Journal
Proceedings of the National Academy of Sciences
Published
2025-10-31
DOI
https://doi.org/10.1073/pnas.2506204122
Citations
2
Primary Topic
Micro and Nano Robotics
Type
article
Field-Weighted Citation Impact
2.52

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article

Nanofluidic logic based on chiral skyrmion flows

Guoping Zhao, Xichao Zhang, Masahito Mochizuki, Yan Zhou et al.
2 citations
Proceedings of the National Academy of Sciences
Micro and Nano Robotics
2.52
article

Nanofluidic logic based on chiral skyrmion flows

Guoping Zhao, Xichao Zhang, Masahito Mochizuki, Yan Zhou, Jing Xia, Xiaoxi Liu, Yongbing Xu
article en
2 citations

Abstract

Particle-like chiral magnetic skyrmions can flow in nanotracks and behave like chiral fluids. Using interacting flows to perform logical operations is an important topic in microfluidics and nanofluidics. Here, we report a basic nanofluidic logic computing system based on chiral magnetic skyrmions flowing in parallel pipelines connected by an H-shaped junction. The flow behaviors could be manipulated by adjusting the spin polarization angle, which controls the intrinsic skyrmion Hall angle. We demonstrate that within certain range of the spin polarization angle, fully developed skyrmion flows could lead to fluidic logical operations, which significantly reduce the complexity of skyrmion logic as there is no need for deterministic creation, precise control, and detection of a single isolated skyrmion. Our results suggest that the chiral flow behaviors of magnetic quasiparticles may offer possibilities for spintronic and nanofluidic functions.

Proceedings of the National Academy of SciencesVol. 122(44)
Shinshu University (JP), Waseda University (JP), Chinese University of Hong Kong (HK), Chinese University of Hong Kong, Shenzhen (CN), Spintronics Research Network of Japan (JP), University of York (GB), Sichuan Normal University (CN), Nanjing University (CN)
National Natural Science Foundation of China, Waseda University, Japan Society for the Promotion of Science, Japan Science and Technology Agency, National Key Research and Development Program of China, Shenzhen Fundamental Research and Discipline Layout project, Basic and Applied Basic Research Foundation of Guangdong Province, Core Research for Evolutional Science and Technology
Openalex Percentile: Top 10%
Micro and Nano Robotics
2.52
DOIOpen Access PDFOpenAlex
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