Electronic Structures of Atom Aggregates Studied by Photoelectron Spectroscopy using Synchrotron Radiation

使用同步辐射的光电子能谱研究原子聚集体的电子结构

• 批准号: 63420009
• 负责人: KAKIZAKI Akito
• 金额: $ 18.05万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (A)
• 财政年份: 1988
• 资助国家: 日本
• 起止时间: 1988 至 1990
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-63420009/
• 关键词: Photoelectron; Microclusters; Synchrotron Radiation; Undulater Radiation; Electronic Structure; アンジュレ-タ放射; イオン収量スペクトル; 電子状態; マイクロクラスター; 光電子分光スペクトル

The aim of this work is to investigate the electronic structures of atom aggregates, such as microclusters and atom and molecules absorbed on surfaces, with spectroscopic technichs (photoelectron, absorption, photoionization, photodesorption spectroscopy) using synchrotron radiation. To accomplish those experiments, we have constructed the sample preparation chamber of UHV compatible type, computer controlled measuring system for photoelectron and photoionization spectra and softwares for data analyzes. These system have been brought into the Beamline 19A at the Photon Factory, 2.5 GeV electron and positron storage ring, and used for experiments.The one of the preliminary results show large amount of photon intensity from the sychrotron radiation si quite suitable for spectroscopic investigations of such a small atomic system, and especially the synchrotron radiation from Revolver undulator will enable us to obtain more precise information on the electronic structures than we obtained so far. We also have measured the photoelectron spectra of Cs atoms absorbed on Si surface and obtained informations on surface electronic band structure.

本研究的目的是利用同步辐射光谱学技术（光电子、吸收、光电离、光脱附光谱）研究原子聚集体的电子结构，如微团簇和表面吸收的原子和分子。为了完成这些实验，我们搭建了特高压兼容型样品制备室、计算机控制的光电子光谱和光电离光谱测量系统以及数据分析软件。这些系统已被引入光子工厂的19A束流线，2.5 GeV的电子和正电子存储环，并用于实验。其中一个初步结果表明，同步辐射产生的大量光子强度非常适合于这样一个小原子系统的光谱研究，特别是来自Revolver波动器的同步辐射将使我们获得比目前所获得的更精确的电子结构信息。我们还测量了Cs原子在Si表面吸收的光电子能谱，获得了Si表面电子能带结构的信息。

项目成果

A.Kakizaki 他: "Performance or Revolver Undula for at the Phorou Factory -Application to Spectroscopy-" Proc.of Workshop on 1〜4 KeV Beamluie SSRL. (予定). (1991)

A.Kakizaki 等人：“Phorou 工厂的性能或左轮手枪 Undula - 光谱学应用 -”Proc.of Workshop on 1〜4 KeV Beamluie SSRL（计划）。

A.Kakizaki,他: "Performance of Reoolver Undulator at the Photon Factory ーApplication to Spectroscopyー" Proc.of Workshop on 1〜4KeV Beamline,SSRL. (1991)

A. Kakizaki 等人：“光子工厂的 Reoolver 波荡器性能 - 光谱学应用 -”1〜4KeV 光束线研讨会论文集，SSRL（1991）。