TY - JOUR
T1 - Energy Transfer into Molecular Vibrations and Rotations by Recoil in Inner-Shell Photoemission
AU - Kukk, E.
AU - Thomas, T. D.
AU - Céolin, D.
AU - Granroth, S.
AU - Travnikova, O.
AU - Berholts, M.
AU - Marchenko, T.
AU - Guillemin, R.
AU - Journel, L.
AU - Ismail, I.
AU - Püttner, R.
AU - Piancastelli, M. N.
AU - Ueda, K.
AU - Simon, M.
N1 - Funding Information:
The authors thank the GALAXIES team for their help with the experiment. E. K. acknowledges funding from the Academy of Finland. K. U. acknowledges support for the XFEL strategy funding by MEXT, the five star alliance, and the TAGEN project. M. B. acknowledges the ERDF project High-technology Materials for Sustainable Development TK117.
Funding Information:
The authors thank the GALAXIES team for their help with the experiment. E. K. acknowledges funding from the Academy of Finland. K. U. acknowledges support for the XFEL strategy funding by MEXT, the five star alliance, and the TAGEN project. M. B. acknowledges the ERDF project High-technology Materials for Sustainable Development TK117.
Publisher Copyright:
© 2018 American Physical Society.
PY - 2018/8/17
Y1 - 2018/8/17
N2 - A mixture of CF4 and CO gases is used to study photoelectron recoil effects extending into the tender x-ray region. In CF4, the vibrational envelope of the C 1s photoelectron spectrum becomes fully dominated by the recoil-induced excitations, revealing vibrational modes hidden from Franck-Condon excitations. In CO, using CF4 as an accurate energy calibrant, we determine the partitioning of the recoil-induced internal excitation energy between rotational and vibrational excitation. The observed rotational recoil energy is 2.88(28) times larger than the observed vibrational recoil energy, well in excess of the ratio of 2 predicted by the basic recoil model. The experiment is, however, in good agreement with the value of 2.68 if energy transfer via Coriolis coupling is included.
AB - A mixture of CF4 and CO gases is used to study photoelectron recoil effects extending into the tender x-ray region. In CF4, the vibrational envelope of the C 1s photoelectron spectrum becomes fully dominated by the recoil-induced excitations, revealing vibrational modes hidden from Franck-Condon excitations. In CO, using CF4 as an accurate energy calibrant, we determine the partitioning of the recoil-induced internal excitation energy between rotational and vibrational excitation. The observed rotational recoil energy is 2.88(28) times larger than the observed vibrational recoil energy, well in excess of the ratio of 2 predicted by the basic recoil model. The experiment is, however, in good agreement with the value of 2.68 if energy transfer via Coriolis coupling is included.
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U2 - 10.1103/PhysRevLett.121.073002
DO - 10.1103/PhysRevLett.121.073002
M3 - Article
C2 - 30169107
AN - SCOPUS:85051831781
VL - 121
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 7
M1 - 073002
ER -