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题名: Efficient vibrational and translational excitations of a solid metal surface: State-to-state time-of-flight measurements of HCl(v=2,J=1) scattering from Au(111)
作者: Rahinov, Igor1;  Cooper, Russell1;  Yuan, Cheng2;  Yang, Xueming2;  Auerbach, Daniel J.3;  Wodtke, Alec M.1
关键词: carrier density ;  charge exchange ;  gold ;  hydrogen compounds ;  molecule-surface impact ;  rotational states ;  surface dynamics ;  time of flight spectra ;  translational states
刊名: JOURNAL OF CHEMICAL PHYSICS
发表日期: 2008-12-07
DOI: 10.1063/1.3028542
卷: 129, 期:21
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Physics, Atomic, Molecular & Chemical
研究领域[WOS]: Physics
英文摘要: We report high resolution state-to-state time-of-flight (TOF) measurements for scattering of HCl(v=2, J=1) from a Au(111) single crystal surface for both vibrationally elastic (v=2 -> 2) as well as inelastic (v=2 -> 1) channels at seven incidence energies between 0.28 and 1.27 eV. The dependences of the TOF results on final HCl rotational state and surface temperature are also reported. The translational energy transferred to the surface depends linearly on incidence energy and is close to the single surface-atom impulse (Baule) limit over the entire range of incidence energies studied. The probability of vibrational relaxation is also large. For molecules that relax from v=2 to v=1, the fraction of vibrational energy that is transferred to the surface is approximately 74%. We discuss these observations in terms of an impulse approximation as well as the possible role of translational and vibrational excitations of electron-hole pairs in the solid.
关键词[WOS]: ENHANCED MULTIPHOTON IONIZATION ;  DIRECT INELASTIC-SCATTERING ;  PULSED SUPERSONIC JET ;  MOLECULAR-BEAM SCATTERING ;  ENERGY-TRANSFER ;  TRAPPING-DESORPTION ;  HYDROGEN-CHLORIDE ;  VALENCE INTERACTIONS ;  EXCITED NO ;  AG(111)
语种: 英语
WOS记录号: WOS:000261430900040
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140855
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China
3.Gas React Technol, Santa Barbara, CA 93111 USA

Recommended Citation:
Rahinov, Igor,Cooper, Russell,Yuan, Cheng,et al. Efficient vibrational and translational excitations of a solid metal surface: State-to-state time-of-flight measurements of HCl(v=2,J=1) scattering from Au(111)[J]. JOURNAL OF CHEMICAL PHYSICS,2008,129(21).
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