Vibrational effects on electron-impact valence excitations of S F6

Noboru Watanabe; Tsukasa Hirayama; Masahiko Takahashi

doi:10.1103/PhysRevA.99.062708

Vibrational effects on electron-impact valence excitations of S F6

Noboru Watanabe, Tsukasa Hirayama, Masahiko Takahashi

IMRAM - Materials-Measurement Hybrid Research Center

Tohoku University

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

9 Citations (Scopus)

Abstract

We report an angle-resolved electron-energy-loss spectroscopy study on the valence excitations of SF6. Momentum-transfer-dependent generalized oscillator strengths (GOSs) or GOS profiles of the low-lying valence excitations have been derived from electron-energy-loss spectra measured at an incident electron energy of 3 keV. We have also performed theoretical calculations of the GOS profiles involving the influence of molecular vibration. Comparisons between experiment and theory have revealed that coupling between electronic states through molecular vibration plays a significant role in the 1T1g1 dipole-forbidden transition.

Original language	English
Article number	062708
Journal	Physical Review A
Volume	99
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevA.99.062708
Publication status	Published - 2019 Jun 20

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10.1103/PhysRevA.99.062708

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title = "Vibrational effects on electron-impact valence excitations of S F6",

abstract = "We report an angle-resolved electron-energy-loss spectroscopy study on the valence excitations of SF6. Momentum-transfer-dependent generalized oscillator strengths (GOSs) or GOS profiles of the low-lying valence excitations have been derived from electron-energy-loss spectra measured at an incident electron energy of 3 keV. We have also performed theoretical calculations of the GOS profiles involving the influence of molecular vibration. Comparisons between experiment and theory have revealed that coupling between electronic states through molecular vibration plays a significant role in the 1T1g1 dipole-forbidden transition.",

author = "Noboru Watanabe and Tsukasa Hirayama and Masahiko Takahashi",

note = "Funding Information: This research was supported by the JSPS KAKENHI Grants No. 18H01932 and No. 25248002. It was also supported in part by the Management Expenses Grants for National Universities Corporation and the Cooperative Research Program of “NJRC Mater. & Dev.” Publisher Copyright: {\textcopyright} 2019 American Physical Society.",

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AU - Watanabe, Noboru

AU - Hirayama, Tsukasa

AU - Takahashi, Masahiko

N1 - Funding Information: This research was supported by the JSPS KAKENHI Grants No. 18H01932 and No. 25248002. It was also supported in part by the Management Expenses Grants for National Universities Corporation and the Cooperative Research Program of “NJRC Mater. & Dev.” Publisher Copyright: © 2019 American Physical Society.

PY - 2019/6/20

Y1 - 2019/6/20

N2 - We report an angle-resolved electron-energy-loss spectroscopy study on the valence excitations of SF6. Momentum-transfer-dependent generalized oscillator strengths (GOSs) or GOS profiles of the low-lying valence excitations have been derived from electron-energy-loss spectra measured at an incident electron energy of 3 keV. We have also performed theoretical calculations of the GOS profiles involving the influence of molecular vibration. Comparisons between experiment and theory have revealed that coupling between electronic states through molecular vibration plays a significant role in the 1T1g1 dipole-forbidden transition.

AB - We report an angle-resolved electron-energy-loss spectroscopy study on the valence excitations of SF6. Momentum-transfer-dependent generalized oscillator strengths (GOSs) or GOS profiles of the low-lying valence excitations have been derived from electron-energy-loss spectra measured at an incident electron energy of 3 keV. We have also performed theoretical calculations of the GOS profiles involving the influence of molecular vibration. Comparisons between experiment and theory have revealed that coupling between electronic states through molecular vibration plays a significant role in the 1T1g1 dipole-forbidden transition.

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Vibrational effects on electron-impact valence excitations of S F6

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