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Rydberg—valence mixing in the C 1s excited states of CH4 probed by electron spectroscopy

✍ Scribed by K. Ueda; M. Okunishi; H. Chiba; Y. Shimizu; K. Ohmori; Y. Sato; E. Shigemasa; N. Kosugi

Publisher: Elsevier Science
Year: 1995
Tongue: English
Weight: 491 KB
Volume: 236
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(95)00227-u

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✦ Synopsis

The Cls ~ ndt 2 Rydberg series and the v = 1 vibrational levels of the symmetric mode (t, 1) in the dominant Cls ~ npt 2 series are clearly identified in the C ls high-resolution electron-yield spectrum of CH 4. In the resonance Auger electron spectra the participant Auger decay rate following the Cls ~ 3sal, 3pt 2 and 3dt 2 excitations are 5.5%, 2.5%, and 3.7% of the total Auger decays, respectively, indicating that these Rydberg states do not have so strongly mixed valence character. The ordering of the valence contribution as 3sa~ > 3dr 2 > 3pt 2 is consistent with the theoretical prediction.

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