| Journal Title /掲載ジャーナル名 |
Proceedings of the National Academy of Sciences of the United States of America |
| Publication Year and Month /掲載年月 |
October, 2025 |
| Paper Title /論文タイトル |
Nanofluidic logic based on chiral skyrmion flows |
| DOI /論文DOI |
10.1073/pnas.2506204122 |
| Author of Waseda University /本学の著者 |
MOCHIZUKI, Masahito(Professor, Faculty of Science and Engineering, School of Advanced Science and Engineering):Correspoinding Author, Last Author |
| Related Websites /関連Web |
– |
| Abstract /抄録 |
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. |
