State-dependent gerade/ungerade intensity ratios in the Auger spectrum of N2

R. Püttner; Hironobu Fukuzawa; X. J. Liu; S. K. Semenov; N. A. Cherepkov; T. Tanaka; M. Hoshino; H. Tanaka; Kiyoshi Ueda

doi:10.1088/0953-4075/41/14/141001

State-dependent gerade/ungerade intensity ratios in the Auger spectrum of N₂

R. Püttner, Hironobu Fukuzawa, X. J. Liu, S. K. Semenov, N. A. Cherepkov, T. Tanaka, M. Hoshino, H. Tanaka, Kiyoshi Ueda

Division of Measurements

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

We have applied both high-resolution photoelectron and Auger spectroscopy to study the N 1s core ionization of N₂. From the respective spectra we are able to show that the Auger decay involves delocalized description of core-hole states. Specifically, the Auger spectra of the N 1sσ _g,u core holes to the quasi-stable final states X¹Σ ⁺_g and D¹Σ⁺_u are presented. They exhibit the gerade/ungerade splitting as well as vibrational progressions. The 1sσ_g/1sσ_u Auger intensity ratios are, in agreement with ab initio calculations, ≅2.1 and ≅0.8 for the X and the D states respectively. The large value for the X state can qualitatively be related to the gerade or ungerade symmetry of the Auger electron.

Original language	English
Article number	141001
Journal	Journal of Physics B: Atomic, Molecular and Optical Physics
Volume	41
Issue number	14
DOIs	https://doi.org/10.1088/0953-4075/41/14/141001
Publication status	Published - 2008 Jul 28

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Condensed Matter Physics

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State-dependent gerade/ungerade intensity ratios in the Auger spectrum of N₂. / Püttner, R.; Fukuzawa, Hironobu; Liu, X. J.; Semenov, S. K.; Cherepkov, N. A.; Tanaka, T.; Hoshino, M.; Tanaka, H.; Ueda, Kiyoshi.

In: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 41, No. 14, 141001, 28.07.2008.

Research output: Contribution to journal › Article › peer-review

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abstract = "We have applied both high-resolution photoelectron and Auger spectroscopy to study the N 1s core ionization of N2. From the respective spectra we are able to show that the Auger decay involves delocalized description of core-hole states. Specifically, the Auger spectra of the N 1sσ g,u core holes to the quasi-stable final states X1Σ +g and D1Σ+u are presented. They exhibit the gerade/ungerade splitting as well as vibrational progressions. The 1sσg/1sσu Auger intensity ratios are, in agreement with ab initio calculations, ≅2.1 and ≅0.8 for the X and the D states respectively. The large value for the X state can qualitatively be related to the gerade or ungerade symmetry of the Auger electron.",

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AU - Semenov, S. K.

AU - Cherepkov, N. A.

AU - Tanaka, T.

AU - Hoshino, M.

AU - Tanaka, H.

AU - Ueda, Kiyoshi

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AB - We have applied both high-resolution photoelectron and Auger spectroscopy to study the N 1s core ionization of N2. From the respective spectra we are able to show that the Auger decay involves delocalized description of core-hole states. Specifically, the Auger spectra of the N 1sσ g,u core holes to the quasi-stable final states X1Σ +g and D1Σ+u are presented. They exhibit the gerade/ungerade splitting as well as vibrational progressions. The 1sσg/1sσu Auger intensity ratios are, in agreement with ab initio calculations, ≅2.1 and ≅0.8 for the X and the D states respectively. The large value for the X state can qualitatively be related to the gerade or ungerade symmetry of the Auger electron.

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