Ultrafast and reliable domain-wall and skyrmion logic in a chirally coupled ferrimagnet
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arXiv
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| Auteurs principaux: | , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866909681560059904 |
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| author | Ma, Yifei Wu, Dihua Yan, Fengbo Fang, Xiaoxiao Qin, Peixin Wang, Leran Liu, Li Shen, Laichuan Liu, Zhiqi Yang, Wenyun Zhang, Jie Zhou, Yan Luo, Feng Yang, Jinbo Yang, Hyunsoo Cai, Kaiming Ning, Shuai Luo, Zhaochu |
| author_facet | Ma, Yifei Wu, Dihua Yan, Fengbo Fang, Xiaoxiao Qin, Peixin Wang, Leran Liu, Li Shen, Laichuan Liu, Zhiqi Yang, Wenyun Zhang, Jie Zhou, Yan Luo, Feng Yang, Jinbo Yang, Hyunsoo Cai, Kaiming Ning, Shuai Luo, Zhaochu |
| contents | Unlocking the spin degree of freedom in addition to the electron's charge, spin-based logic offers an in-memory computing architecture beyond-CMOS technology. Here, we encode information into chiral spin textures (e.g., chiral domain-wall and skyrmion) and achieve an ultrafast and reliable all-electrical logic by exploiting the Dzyaloshinskii-Moriya interaction-induced chiral coupling. Taking advantage of fast spin dynamics in antiferromagnetically coupled systems, we achieved a fast domain-wall motion passing through the logic gate, exceeding 1 kilometre per second, yielding an operation time of 50 picoseconds for a 50 nanometres-long logic gate. Furthermore, we present a fast logic operation with skyrmion bubbles in a racetrack that exhibits a topologically protected computation scheme. Our work demonstrates a viable approach for advanced microchips with high operation frequency and ultralow power consumption, paving the way for next-generation computing technologies. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_07004 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Ultrafast and reliable domain-wall and skyrmion logic in a chirally coupled ferrimagnet Ma, Yifei Wu, Dihua Yan, Fengbo Fang, Xiaoxiao Qin, Peixin Wang, Leran Liu, Li Shen, Laichuan Liu, Zhiqi Yang, Wenyun Zhang, Jie Zhou, Yan Luo, Feng Yang, Jinbo Yang, Hyunsoo Cai, Kaiming Ning, Shuai Luo, Zhaochu Mesoscale and Nanoscale Physics Unlocking the spin degree of freedom in addition to the electron's charge, spin-based logic offers an in-memory computing architecture beyond-CMOS technology. Here, we encode information into chiral spin textures (e.g., chiral domain-wall and skyrmion) and achieve an ultrafast and reliable all-electrical logic by exploiting the Dzyaloshinskii-Moriya interaction-induced chiral coupling. Taking advantage of fast spin dynamics in antiferromagnetically coupled systems, we achieved a fast domain-wall motion passing through the logic gate, exceeding 1 kilometre per second, yielding an operation time of 50 picoseconds for a 50 nanometres-long logic gate. Furthermore, we present a fast logic operation with skyrmion bubbles in a racetrack that exhibits a topologically protected computation scheme. Our work demonstrates a viable approach for advanced microchips with high operation frequency and ultralow power consumption, paving the way for next-generation computing technologies. |
| title | Ultrafast and reliable domain-wall and skyrmion logic in a chirally coupled ferrimagnet |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2507.07004 |