Measurement of the electron affinity of atomic Ce

Jeremy Felton, Manisha Ray, and Caroline Chick Jarrold
Phys. Rev. A 89, 033407 – Published 10 March 2014

Abstract

Photoelectron spectra of Ce obtained using both 2.33- and 3.49-eV photon energies resolve numerous transitions between the 4H7/2 (4f 5d2 6s2) anion ground state and excited neutral states, in addition to transitions from excited anion states to the ground and excited neutral states. Building on the theoretical work of O’Malley and Beck [S. M. O’Malley and D. R. Beck, Phys. Rev. A 74, 042509 (2006)] and the known term energies of Ce excited states, we determined the adiabatic electron affinity of Ce to be 0.570(20) eV, which is lower than previously reported experimental values. The term energy of the lowest-energy excited anion state arising from the 4f 5d 6s2 6p configuration was also determined to be 0.210(20) eV.

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  • Received 8 November 2013

DOI:https://doi.org/10.1103/PhysRevA.89.033407

©2014 American Physical Society

Authors & Affiliations

Jeremy Felton, Manisha Ray, and Caroline Chick Jarrold*

  • Department of Chemistry, Indiana University, 800 E. Kirkwood Ave, Bloomington, Indiana 47405, USA

  • *Corresponding author: cjarrold@indiana.edu

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Issue

Vol. 89, Iss. 3 — March 2014

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