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ShanghaiTech University Knowledge Management System
Slow Equilibrium Relaxation in a Chiral Magnet Mediated by Topological Defects | |
2024-10-18 | |
发表期刊 | PHYSICAL REVIEW LETTERS (IF:8.1[JCR-2023],8.3[5-Year]) |
ISSN | 0031-9007 |
EISSN | 1079-7114 |
卷号 | 133期号:16 |
DOI | 10.1103/PhysRevLett.133.166707 |
摘要 | We performed a pump-probe experiment on the chiral magnet Cu2OSeO3 to study the relaxation dynamics of its noncollinear magnetic orders, employing a millisecond magnetic field pulse as the pump and resonant elastic x-ray scattering as the probe. Our findings reveal that the system requires similar to 0.2 s to stabilize after the perturbation applied to both the conical and skyrmion lattice phase, which is significantly slower than the typical nanosecond timescale observed in micromagnetics. This prolonged relaxation is attributed to the formation and slow dissipation of local topological defects, such as emergent monopoles. By unveiling the experimental lifetime of these emergent singularities in a noncollinear magnetic system, our study highlights a universal relaxation mechanism in solitonic textures within the slow dynamics regime, offering new insights into topological physics and advanced information storage solutions. |
URL | 查看原文 |
收录类别 | PPRN.PPRN ; SCI |
语种 | 英语 |
资助项目 | National Key R&D Program of China["2022YFA1403602","2020YFA0309400"] ; Science and Technology Commission of the Shanghai Municipality[21JC1405100] ; National Natural Science Foundation of China["12074257","12241406"] |
WOS研究方向 | Physics |
WOS类目 | Physics, Multidisciplinary |
WOS记录号 | WOS:001381690300001 |
出版者 | AMER PHYSICAL SOC |
文献类型 | 期刊论文 |
条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/442486 |
专题 | 物质科学与技术学院 物质科学与技术学院_硕士生 物质科学与技术学院_本科生 物质科学与技术学院_PI研究组_张石磊组 |
通讯作者 | Zhang, Shilei |
作者单位 | 1.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 2.ShanghaiTech Univ, ShanghaiTech Lab Topol Phys, Shanghai 201210, Peoples R China 3.Diamond Light Source, Harwell Sci & Innovat Campus, Didcot OX11 0DE, England 4.Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England 5.ShanghaiTech Univ, Ctr Transformat Sci, Shanghai 201210, Peoples R China |
第一作者单位 | 物质科学与技术学院 |
通讯作者单位 | 物质科学与技术学院; 上海科技大学 |
第一作者的第一单位 | 物质科学与技术学院 |
推荐引用方式 GB/T 7714 | Zhang, Chenhao,Wu, Yang,Chen, Jingyi,et al. Slow Equilibrium Relaxation in a Chiral Magnet Mediated by Topological Defects[J]. PHYSICAL REVIEW LETTERS,2024,133(16). |
APA | Zhang, Chenhao.,Wu, Yang.,Chen, Jingyi.,Jin, Haonan.,Wang, Jinghui.,...&Zhang, Shilei.(2024).Slow Equilibrium Relaxation in a Chiral Magnet Mediated by Topological Defects.PHYSICAL REVIEW LETTERS,133(16). |
MLA | Zhang, Chenhao,et al."Slow Equilibrium Relaxation in a Chiral Magnet Mediated by Topological Defects".PHYSICAL REVIEW LETTERS 133.16(2024). |
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