TY - JOUR
T1 - Vibrational effects on electron-impact valence excitations of S F6
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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U2 - 10.1103/PhysRevA.99.062708
DO - 10.1103/PhysRevA.99.062708
M3 - Article
AN - SCOPUS:85068163578
VL - 99
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
SN - 1050-2947
IS - 6
M1 - 062708
ER -