Electron detachment energies of PbN- (N = 24-204) determined in a simple magnetic bottle photoelectron spectrometer

被引：37

作者：

Luder, C ^{[1
]}

Meiwes-Broer, KH ^{[1
]}

机构：

[1] Univ Rostock, Fachbereich Phys, D-18051 Rostock, Germany

来源：

CHEMICAL PHYSICS LETTERS | 1998年 / 294卷 / 4-5期

关键词：

D O I：

10.1016/S0009-2614(98)00895-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A simple magnetic bottle time-of-flight photoelectron spectrometer is constructed and used to measure the vertical detachment energies (VDE) of large lead clusters. The main feature of the spectrometer is a high transmission for low kinetic energy electrons, accompanied by a reasonable resolution. The measured VDE of the lead clusters are compared to local density approximation calculations in the spherical jellium model. Over the whole size range (N = 2, ..., 204), the experimental results roughly follow the calculated values. A slight systematic deviation as well as some fine structure in the N-dependence emphasizes that the model used is only a rough approximation to the real situation. The usefulness of the photodetachment method for the detection of large clusters is discussed. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：391 / 396

页数：6