FIRST IONIZATION-POTENTIALS OF OSMIUM AND IRIDIUM DETERMINED BY MASS-ANALYZED DOUBLE-RESONANCE FIELD-IONIZATION SPECTROSCOPY

Authors
COLARUSSO P LEBEAULTDORGET MA SIMARD B
Citation
P. Colarusso et al., FIRST IONIZATION-POTENTIALS OF OSMIUM AND IRIDIUM DETERMINED BY MASS-ANALYZED DOUBLE-RESONANCE FIELD-IONIZATION SPECTROSCOPY, Physical review. A, 55(2), 1997, pp. 1526-1529
Citations number
15
Categorie Soggetti
Physics
Journal title
Physical review. A → ACNP
ISSN journal
10502947
Volume
55
Issue
2
Year of publication
1997
Pages
1526 - 1529
Database
ISI
SICI code
1050-2947(1997)55:2<1526:FIOOAI>2.0.ZU;2-3
Abstract
The ionization potentials of neutral osmium and iridium atoms have bee n obtained by mass-analyzed optical-optical double resonance spectrosc opy. Observation of the photoionization threshold yielded approximate values of 68 058+/-2 cm(-1) for Os I and 72 324+/-2 cm(-1) for Ir I. I n addition, high-lying ns and nd Rydberg series were recorded and fit by a Rydberg formula in order to obtain independent values of the ioni zation potentials. The results were 68 058.9+/-1.6 cm(-1) for Os I and 72 323.9+/-1.8 cm(-1) for Ir I.