A COMPARISON OF PHOTOELECTRON-SPECTROSCOPY AND 2-PHOTON IONIZATION SPECTROSCOPY - EXCITED-STATES OF AU-2, AU-3, AND AU-4

Authors
HANDSCHUH H GANTEFOR G BECHTHOLD PS EBERHARDT W
Citation
H. Handschuh et al., A COMPARISON OF PHOTOELECTRON-SPECTROSCOPY AND 2-PHOTON IONIZATION SPECTROSCOPY - EXCITED-STATES OF AU-2, AU-3, AND AU-4, The Journal of chemical physics, 100(10), 1994, pp. 7093-7100
Citations number
44
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
The Journal of chemical physics → ACNP
ISSN journal
00219606
Volume
100
Issue
10
Year of publication
1994
Pages
7093 - 7100
Database
ISI
SICI code
0021-9606(1994)100:10<7093:ACOPA2>2.0.ZU;2-F
Abstract
Photoelectron spectra of Au-n(-) with n = 2-4 are reported. Due to the relatively high photon energy used in our experiment (h nu = 6.424 eV ) and the energy resolution of about 50 meV, various transitions into excited states of the neutral clusters are resolved. It is demonstrate d that photoelectron spectra can serve as a map of the electronic stat es of a cluster, while the high resolution of the resonant two-photon ionization (R2PI) method gains information about the symmetry of the s tates. The comparison with similar data of Ag-n(-) clusters indicates the influence of relativistic effects and the large spin-orbit splitti ng for Au.