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Rise and fall of the 4d¹⁰→4d⁹4f resonance in the Xe isoelectronic sequence

Hansen, J. and Brilly, James and Kennedy, Eugene T. and O'Sullivan, G. (1989) Rise and fall of the 4d¹⁰→4d⁹4f resonance in the Xe isoelectronic sequence. Physical Review Letters, 63 (18). pp. 1934-1937. ISSN 0031-9007

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The extreme ultraviolet photoabsorption spectrum of a laser-produced lanthanum plasma has been recorded and found to contain a number of discrete features in the 130-eV region. These have been analyzed as 4d10→4d9nf,np transitions in La3+. We show that the 4f transition, which is expected to be the strongest, is not in evidence. The reason is that this resonance, after the collapse of the 4f wave function, has a large autoionization width. We conclude that the 4f orbital in Ba2+ is only partially collapsed, which settles a long-standing discussion of this point.

Item Type:Article (Published)
Subjects:Physical Sciences > Physics
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Science and Health > School of Physical Sciences
Publisher:The American Physical Society
Official URL:
Copyright Information:© 1989 The American Physical Society
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
ID Code:15621
Deposited On:05 Aug 2010 17:07 by DORAS Administrator. Last Modified 25 Oct 2017 11:55

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