X-ray free electron laser studies of electron and phonon dynamics of graphene adsorbed on copper

doi:10.1103/PhysRevMaterials.7.024005

	X-ray free electron laser studies of electron and phonon dynamics of graphene adsorbed on copper
	Ogasawara, Hirohito 1; Wang, Han1,7 ; Gladh, Jorgen ; Gallo, Alessandro 1; Page, Ralph 1,2; Voss, Johannes 1; Luntz, Alan 1; Diesen, Elias 1; Abild-Pedersen, Frank 1; Nilsson, Anders 1,3; Soldemo, Markus 1,2,3; Zajac, Marc 2,8; Attar, Andrew 1; Chen, Michelle E.2; Cho, Sang Wan 4; Katoch, Abhishek 4; Kim, Ki-Jeong 5; Kim, Kyung Hwan 6; Kim, Minseok 5; Kwon, Soonnam 5; Park, Sang Han 5; Ribeiro, Henrique 1,2; Sainio, Sami 1; Wang, Hsin-Yi 3; Yang, Cheolhee 6; Heinz, Tony 1,2
	2023-02-01
发表期刊	PHYSICAL REVIEW MATERIALS; (IF:3.1[JCR-2023],3.4[5-Year])
ISSN	2475-9953
EISSN	2475-9953
卷号	7 期号:2
发表状态	已发表
DOI	10.1103/PhysRevMaterials.7.024005
摘要	We report optical pumping and x-ray absorption spectroscopy experiments at the Pohang Accelerator Laboratory free electron laser that probes the electron dynamics of a graphene monolayer adsorbed on copper in the femtosecond regime. By analyzing the results with ab initio theory we infer that the excitation of graphene is dominated by indirect excitation from hot electron-hole pairs created in the copper by the optical laser pulse. However, once the excitation is created in graphene, its decay follows a similar path as in many previous studies of graphene adsorbed on semiconductors, i.e., rapid excitation of strongly coupled optical phonons and eventual thermalization. It is likely that the lifetime of the hot electron-hole pairs in copper governs the lifetime of the electronic excitation of the graphene.
关键词	Copper Electrons Excited states Free electron lasers Hot electrons Laser excitation Laser theory Optical pumping Phonons Semiconductor lasers X ray absorption spectroscopy Ab initio theory Electron dynamics Electron hole pairs Electrons and phonons Femtosecond regimes Free-electron lasers Optical lasers Phonon dynamics X-ray absorption spectroscopy X-ray free electron lasers
学科门类	Materials Science (all) ; Physics and Astronomy (miscellaneous)
URL	查看原文
收录类别	SCOPUS ; EI ; SCI
语种	英语
资助项目	U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Chemical Sciences, Geosciences, and Biosciences Division, Catalysis Science Program[FWP 100435] ; National Research Foundation of Korea["2020-first-SSS-006","2020-second-SSS-014"] ; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences[NRF-2020R1A2C1007416]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000943101300002
出版者	AMER PHYSICAL SOC
EI入藏号	20231113701658
EI主题词	Graphene
EI分类号	544.1 Copper ; 701.1 Electricity: Basic Concepts and Phenomena ; 744.1 Lasers, General ; 744.4.1 Semiconductor Lasers ; 744.5 Free Electron Lasers ; 744.9 Laser Applications ; 761 Nanotechnology ; 801.4 Physical Chemistry ; 804 Chemical Products Generally ; 931.3 Atomic and Molecular Physics ; 931.4 Quantum Theory ; Quantum Mechanics
原始文献类型	Article
Scopus 记录号	2-s2.0-85149674243
来源库	SCOPUS
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/286512
专题	物质科学与技术学院物质科学与技术学院_博士生
通讯作者	Luntz, Alan
作者单位	1.SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA 2.Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA 3.Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden 4.Yonsei Univ, Dept Phys, Wonju 26493, South Korea 5.Pohang Accelerator Lab, Pohang 37673, South Korea 6.Pohang Univ Sci & Technol POSTECH, Dept Chem, Pohang 37673, South Korea 7.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 8.Argonne Natl Lab, Xray Sci Div, Lemont, IL 60439 USA
推荐引用方式 GB/T 7714	Ogasawara, Hirohito,Wang, Han,Gladh, Jorgen,et al. X-ray free electron laser studies of electron and phonon dynamics of graphene adsorbed on copper[J]. PHYSICAL REVIEW MATERIALS;,2023,7(2).
APA	Ogasawara, Hirohito.,Wang, Han.,Gladh, Jorgen.,Gallo, Alessandro.,Page, Ralph.,...&Heinz, Tony.(2023).X-ray free electron laser studies of electron and phonon dynamics of graphene adsorbed on copper.PHYSICAL REVIEW MATERIALS;,7(2).
MLA	Ogasawara, Hirohito,et al."X-ray free electron laser studies of electron and phonon dynamics of graphene adsorbed on copper".PHYSICAL REVIEW MATERIALS; 7.2(2023).