Transient energy dissipation at the Fermi velocity in a magnetocaloric metal
文献类型：期刊论文
| 作者 | Chen, Yanna1,2,14; Zhang, Zhao3,4; Zhang, Zhe3,4; Zhou, Houbo5,6,7; Yan, Xuexi3,4; Sun, Tao8; Harmon, Katherine J.9; Owada, Shigeki1; Tono, Kensuke1,10,11; Sugahara, Michihiro1 |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2024-10-31 |
| 卷号 | 110期号:13页码:10 |
| ISSN号 | 2469-9950 |
| DOI | 10.1103/PhysRevB.110.134323 |
| 通讯作者 | Li, Bing(bingli@imr.ac.cn) |
| 英文摘要 | Realizing fast energy dissipation in crystalline materials over macroscopic length scales is critical for energyefficient devices and applications toward a carbon-neutral society but is usually dominated by electron-lattice interactions that cap the energy dissipation at the phonon velocity. Going beyond this velocity has been the focus of many studies, and the physical limit is the Fermi velocity where the energy is predominantly carried away by electrons throughout the materials. However, whether and how the Fermi velocity can be reached over macroscopic distances experimentally remain largely elusive. Here we show ultrafast energy dissipation at the Fermi velocity in the magnetocaloric metal LaFe10.6Co1.0Si1.4. Using time-resolved powder x-ray diffraction, we observe negative thermal expansion of the lattice throughout the micron-sized crystals in less than 600 fs with an incident optical fluence higher than 8 J cm-2. The ultrafast timescale is in sharp contrast to the normal energy dissipation and shows the existence of a macroscopic momentum-relaxing electron mean free path immediately after the optical excitation. Our findings open a different regime in energy dissipation and demonstrate the possibility of manipulating macroscopic material properties by strong optical pulses. |
| 资助项目 | Ministry of Science and Technol-ogy of China[2021YFB3501201] ; Ministry of Science and Technol-ogy of China[2022YFE0109900] ; Ministry of Science and Technol-ogy of China[ZDBS-LY-JSC002] ; Key Research Program of Fron-tier Sciences of the Chinese Academy of Sciences[ZDBS-LY-JSC002] ; International Partner Pro-gram of the Chinese Academy of Sciences[174321KYSB20200008] ; Ministry of Science and Technology of China[2021YFB3501202] ; Ministry of Science and Technology of China[52088101] ; National Natural Science Foundation of China ; Northwestern University (NU) Institute of Catalysis in Energy Processes - U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences[DE-FG02-03ER15457] ; Northwestern University (NU) Institute of Catalysis in Energy Processes - U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences[18K04868] ; U.S. Department of Energy, Office of Science, Basic En-ergy Sciences, Materials Science and Engineering Division ; Laboratory Directed Research and Development (LDRD) ; Argonne National Lab-oratory[DE-AC02-06CH11357] ; Office of Science, of the U.S. Department of Energy[DE-AC02-06CH11357] ; Office of Science, of the U.S. Department of Energy[2019A8092] ; [U1832219] ; [2019B8077] |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001350104200002 |
| 出版者 | AMER PHYSICAL SOC |
| 资助机构 | Ministry of Science and Technol-ogy of China ; Key Research Program of Fron-tier Sciences of the Chinese Academy of Sciences ; International Partner Pro-gram of the Chinese Academy of Sciences ; Ministry of Science and Technology of China ; National Natural Science Foundation of China ; Northwestern University (NU) Institute of Catalysis in Energy Processes - U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences ; U.S. Department of Energy, Office of Science, Basic En-ergy Sciences, Materials Science and Engineering Division ; Laboratory Directed Research and Development (LDRD) ; Argonne National Lab-oratory ; Office of Science, of the U.S. Department of Energy |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Li, Bing |
| 作者单位 | 1.Northwestern Univ, Mat Sci & Engn, Evanston, IL 60201 USA 2.Natl Inst Mat Sci, Res Ctr Adv Measurement & Characterizat, Synchrotron Xray Grp, 1-1-1 Kouto, Sayo, Hyogo 6795148, Japan 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 4.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 5.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China 6.Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, Beijing 100190, Peoples R China 7.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 8.Chinese Acad Sci, High Magnet Field Lab, HFIPS, Hefei 230031, Anhui, Peoples R China 9.Argonne Natl Lab, Mat Sci Div, Lemont, IL 60439 USA 10.Japan Synchrotron Radiat Res Inst, 1-1-1 Kouto, Sayo, Hyogo 6795148, Japan |
| 推荐引用方式 GB/T 7714 | Chen, Yanna,Zhang, Zhao,Zhang, Zhe,et al. Transient energy dissipation at the Fermi velocity in a magnetocaloric metal[J]. PHYSICAL REVIEW B,2024,110(13):10. |
| APA | Chen, Yanna.,Zhang, Zhao.,Zhang, Zhe.,Zhou, Houbo.,Yan, Xuexi.,...&Zhang, Zhidong.(2024).Transient energy dissipation at the Fermi velocity in a magnetocaloric metal.PHYSICAL REVIEW B,110(13),10. |
| MLA | Chen, Yanna,et al."Transient energy dissipation at the Fermi velocity in a magnetocaloric metal".PHYSICAL REVIEW B 110.13(2024):10. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。