Experimental observations of s-p coupling in copper dimer anions
文献类型：期刊论文
| 作者 | Liu, Benkang; Wang, Yanqiu; Wang, Li |
| 刊名 | physical review a
 |
| 出版日期 | 2013-09-11 |
| 卷号 | 88期号:3页码:033413 |
| ISSN号 | 1050-2947 |
| 产权排序 | 待补充 |
| 通讯作者 | 王利 |
| 合作状况 | 英 |
| 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. |
| WOS标题词 | science & technology ; physical sciences |
| 学科主题 | 物理化学 |
| 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 |
| 收录类别 | SCI |
| 资助信息 | 1，1 |
| 原文出处 | 033413 |
| 语种 | 英语 |
| WOS记录号 | WOS:000324234400007 |
| 公开日期 | 2014-09-11 |
| 源URL | [http://159.226.238.44/handle/321008/119105]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Benkang,Wang, Yanqiu,Wang, Li. 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.(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. |
入库方式： OAI收割
来源：大连化学物理研究所
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