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| Slow Equilibrium Relaxation in a Chiral Magnet Mediated by Topological Defects | |
| 2024 | |
| 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 |
| 发表状态 | 正式接收 |
| 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 ∼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. © 2024 American Physical Society. |
| 关键词 | Magnetic relaxation Magnetic storage Chiral magnets Magnetic orders Magnetic-field pulse Noncollinear Pump-probe experiments Relaxation dynamics Skyrmion lattices Time-scales Topological defect X -ray scattering |
| 收录类别 | EI |
| 语种 | 英语 |
| 出版者 | American Physical Society |
| EI入藏号 | 20245017494496 |
| EI主题词 | X ray scattering |
| EI分类号 | 1103.1 ; 1301.2.1 ; 701.2 Magnetism: Basic Concepts and Phenomena |
| 原始文献类型 | Journal article (JA) |
| 文献类型 | 期刊论文 |
| 条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/421406 |
| 专题 | 物质科学与技术学院_硕士生 物质科学与技术学院_本科生 |
| 共同第一作者 | Zhang CH(张宸豪); Wu Y(吴杨); Chen JY(陈敬贻) |
| 作者单位 | 上海科技大学 |
| 第一作者单位 | 上海科技大学 |
| 第一作者的第一单位 | 上海科技大学 |
| 推荐引用方式 GB/T 7714 | Zhang CH,Wu Y,Chen JY. Slow Equilibrium Relaxation in a Chiral Magnet Mediated by Topological Defects[J]. PHYSICAL REVIEW LETTERS,2024,133(16). |
| APA | Zhang CH,Wu Y,&Chen JY.(2024).Slow Equilibrium Relaxation in a Chiral Magnet Mediated by Topological Defects.PHYSICAL REVIEW LETTERS,133(16). |
| MLA | Zhang CH,et al."Slow Equilibrium Relaxation in a Chiral Magnet Mediated by Topological Defects".PHYSICAL REVIEW LETTERS 133.16(2024). |
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