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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])
ISSN0031-9007
EISSN1079-7114
卷号133期号:16
DOI10.1103/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.
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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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