| 题名 | Anomalous Nernst Effect Induced Terahertz Emission in a Single Ferromagnetic Film |
| 作者 | |
| 通讯作者 | Feng，Zheng; Jin，Zuanming; Huang，Ssu Yen |
| 发表日期 | 2023-09-13
|
| DOI | |
| 发表期刊 | |
| EISSN | 1530-6992
|
| 卷号 | 23期号:17页码:8171-8179 |
| 摘要 | Despite its important role in understanding ultrafast spin dynamics and revealing novel spin/orbit effects, the mechanism of the terahertz (THz) emission from a single ferromagnetic nanofilm upon a femtosecond laser pump still remains elusive. Recent experiments have shown exotic symmetry, which is not expected from the routinely adopted mechanism of ultrafast demagnetization. Here, by developing a bidirectional pump-THz emission spectroscopy and associated symmetry analysis method, we set a benchmark for the experimental distinction of the THz emission induced by various mechanisms. Our results unambiguously unveil a new mechanism─anomalous Nernst effect (ANE) induced THz emission due to the ultrafast temperature gradient created by a femtosecond laser. Quantitative analysis shows that the THz emission exhibits interesting thickness dependence where different mechanisms dominate at different thickness ranges. Our work not only clarifies the origin of the ferromagnetic-based THz emission but also offers a fertile platform for investigating the ultrafast optomagnetism and THz spintronics. |
| 关键词 | |
| 相关链接 | [Scopus记录] |
| 收录类别 | |
| 语种 | 英语
|
| 重要成果 | NI论文
|
| 学校署名 | 其他
|
| WOS记录号 | WOS:001121991600001
|
| EI入藏号 | 20233814769158
|
| EI主题词 | Femtosecond lasers
; Ferromagnetic materials
; Ferromagnetism
; Pumping (laser)
; Spin dynamics
; Terahertz spectroscopy
; Terahertz waves
|
| EI分类号 | Magnetism: Basic Concepts and Phenomena:701.2
; Magnetic Materials:708.4
; Electromagnetic Waves:711
; Lasers, General:744.1
; Mechanics:931.1
; Atomic and Molecular Physics:931.3
|
| ESI学科分类 | MATERIALS SCIENCE
|
| 引用统计 |
被引频次[WOS]：8
|
| 成果类型 | 期刊论文 |
| 条目标识符 | http://sustech.caswiz.com/handle/2SGJ60CL/559617 |
| 专题 | 工学院_机械与能源工程系 |
| 作者单位 | 1.Microsystem & Terahertz Research Center,CAEP,Chengdu,610200,China 2.Terahertz Technology Innovation Research Institute,Terahertz Spectrum and Imaging Technology Cooperative Innovation Center,Shanghai Key Lab of Modern Optical System,University of Shanghai for Science and Technology,200093,China 3.Department of Physics,National Taiwan University,10617,Taiwan 4.National Laboratory of Solid State Microstructures and Department of Physics,Nanjing University,Nanjing,210093,China 5.Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,518055,China 6.Department of Mechanical Engineering,National University of Singapore,117516,Singapore 7.School of Physics and Optoelectronics Engineering Science,Anhui University,Hefei,230601,China 8.Collaborative Innovation Center of Advanced Microstructures,Nanjing University,Nanjing,210093,China 9.Department of Physics,Shanghai University,200444,China 10.ICQD,Hefei National Laboratory for Physical Sciences at Microscale,University of Science and Technology of China,Hefei,230026,China 11.Department of Physics,University of Science and Technology of China,Hefei,230026,China |
| 推荐引用方式 GB/T 7714 |
Feng，Zheng,Tan，Wei,Jin，Zuanming,et al. Anomalous Nernst Effect Induced Terahertz Emission in a Single Ferromagnetic Film[J]. Nano letters,2023,23(17):8171-8179.
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| APA |
Feng，Zheng.,Tan，Wei.,Jin，Zuanming.,Chen，Yi Jia.,Zhong，Zhangfeng.,...&Huang，Ssu Yen.(2023).Anomalous Nernst Effect Induced Terahertz Emission in a Single Ferromagnetic Film.Nano letters,23(17),8171-8179.
|
| MLA |
Feng，Zheng,et al."Anomalous Nernst Effect Induced Terahertz Emission in a Single Ferromagnetic Film".Nano letters 23.17(2023):8171-8179.
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| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | 操作 | |
| 2023-Anomalous Nerns（3877KB） | -- | -- | 限制开放 | -- | ||
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