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Phys. Rev. A 64, 042707 (2001) [13 pages]

2p photoelectron spectra and linear alignment dichroism of atomic Cr

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Ph. Wernet*, J. Schulz, and B. Sonntag
II. Institut für Experimentalphysik, Universität Hamburg, Luruper Chaussee 149, D-22761 Hamburg, Germany

K. Godehusen and P. Zimmermann
Institut für Atomare und Analytische Physik, Technische Universität Berlin, Hardenbergstrasse 36, D-10623 Berlin, Germany

A. N. Grum-Grzhimailo
Institute of Nuclear Physics, Moscow State University, 119899 Moscow, Russia

N. M. Kabachnik†
Fakultät für Physik, Universität Bielefeld, D-33615 Bielefeld, Germany

M. Martins
Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany

Received 21 February 2001; published 12 September 2001

The 2p photoionization of free Cr atoms has been studied. Unpolarized as well as laser-aligned Cr atoms have been ionized with linearly polarized undulator radiation well above the 2p ionization thresholds. The investigation of the main and satellite 2p photoelectron lines and of the linear alignment dichroism allowed for a detailed characterization of the Cr 2p photoionization process. The spectra are compared to the predictions of the pure jK coupling model and to the results of intermediate coupling Hartree-Fock calculations. The importance of the investigations for the discussion of the 2p photoelectron spectra of bound 3d transition-metal atoms is pointed out.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.64.042707
DOI:
10.1103/PhysRevA.64.042707
PACS:
32.80.Fb, 32.80.Hd

*Present address: Stanford Synchrotron Radiation Laboratory, MS 69, 2575 Sand Hill Rd., Menlo Park, CA 94025.

†On leave from Institute of Nuclear Physics, Moscow State University, 119899 Moscow, Russia.

 
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