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学科主题物理化学
Experimental observations of s-p coupling in copper dimer anions
Liu, Benkang; Wang, Yanqiu; Wang, Li; Wang L(王利)
刊名PHYSICAL REVIEW A
2013-09-11
ISSN1050-2947
DOI10.1103/PhysRevA.88.033413
88期:3页:033413
收录类别SCI
合作性质
文章类型Article
部门归属11
项目归属1101
产权排名待补充
WOS标题词Science & Technology ; Physical Sciences
资助者1,1 ; 1,1 ; 1,1 ; 1,1
类目[WOS]Optics ; Physics, Atomic, Molecular & Chemical
研究领域[WOS]Optics ; Physics
关键词[WOS]ELECTRONIC SHELL STRUCTURE ; SMALL ALUMINUM CLUSTERS ; SIMPLE METAL-CLUSTERS ; ANGULAR-DISTRIBUTIONS ; NEGATIVE-IONS ; PHOTOELECTRON-SPECTROSCOPY ; CROSS-SECTIONS ; JELLIUM MODEL ; PHOTODETACHMENT ; SUPERATOMS
英文摘要The photoelectron velocity-map image technique was employed to examine the one-photon detachment of Cu monomer and dimer anions using a linearly polarized infrared femtosecond laser. While the photoelectron angular distribution (PAD) in a single-photon detachment experiment of Cu- shows no dependence on photon energy, the dimer anion PAD does show a strong dependence on photon energy. As the laser wavelength increases from 532 to 817 nm, the photoelectron angular distributions of the main one-photon detachment channel of the prominent detachment channel of Cu-2(-) changes its direction from parallel to the direction of polarization for the 532-nm laser to perpendicular to the direction of polarization for the 817-nm laser. Based upon a numerical analysis of the anisotropy parameters, the relative contributions of the s, p, and d orbitals are obtained. The fully occupied d orbitals contribute less to the detachment amplitude. The contribution of the p waves to the detachment amplitude increases with the photon energy, while that of s waves decreases, which is in agreement with the prediction of the Wigner threshold law. The relative contributions of the different partial waves, s and p, to the detachment amplitude are altered by the excess energy of the detached electron, resulting in the determined shape of the photoelectron angular distributions. Our one-photon photodetachment experiments on the energy-dependent angular distributions of the copper anionic dimers indicate that s-p coupling is important to the photodetachment of copper dimer anions, especially at increased photon energies.
语种英语
资助者1,1 ; 1,1 ; 1,1 ; 1,1
原文出处查看原文
WOS记录号WOS:000324234400007
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/119105
专题中国科学院大连化学物理研究所
通讯作者Wang L(王利)
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Liaoning, Peoples R China
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GB/T 7714
Liu, Benkang,Wang, Yanqiu,Wang, Li,et al. Experimental observations of s-p coupling in copper dimer anions[J]. PHYSICAL REVIEW A,2013,88(3):033413.
APA Liu, Benkang,Wang, Yanqiu,Wang, Li,&王利.(2013).Experimental observations of s-p coupling in copper dimer anions.PHYSICAL REVIEW A,88(3),033413.
MLA Liu, Benkang,et al."Experimental observations of s-p coupling in copper dimer anions".PHYSICAL REVIEW A 88.3(2013):033413.
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