Accurate electron affinity of Co and fine-structure splittings of Co via slow-electron velocity-map imaging

Xiaolin Chen and Chuangang Ning
Phys. Rev. A 93, 052508 – Published 12 May 2016

Abstract

The high-resolution photoelectron spectra of Co were obtained via the slow-electron velocity-map imaging method. The electron affinity of cobalt element was determined to be 5341.45(37)cm1 or 662.256(46) meV. The fine structure of Co was well resolved. The fine-structure intervals Co(F43)Co(F33) and Co(F43)Co(F23) were found to be 920.9(6)cm1 and 1550.3(9)cm1, respectively. The accuracy was improved by a factor of more than ten with respect to the previous laser photodetachment threshold measurement.

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  • Received 23 March 2016

DOI:https://doi.org/10.1103/PhysRevA.93.052508

©2016 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

Xiaolin Chen1 and Chuangang Ning1,2,*

  • 1Department of Physics, State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University, Beijing 10084, China
  • 2Collaborative Innovation Center of Quantum Matter, Beijing, China

  • *ningcg@tsinghua.edu.cn

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Vol. 93, Iss. 5 — May 2016

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