Nonadiabatic effects in resonant inelastic x-ray scattering.
We have studied the spectral features of resonant inelastic x-ray scattering of condensed ethylene with vibrational selectivity both experimentally and theoretically. Purely vibrational spectral loss features and coupled electronic and vibrational losses are observed. The one-step theory for resonant soft x-ray scattering is applied, taking multiple vibrational modes and vibronic coupling into account. Our investigation of ethylene underlines that the assignment of spectral features observed in resonant inelastic x-ray scattering of polyatomic systems requires an explicit description of the coupled electronic and vibrational loss features.
Hennies
F
F
Institut für Experimentalphysik, Universität Hamburg, Germany.
Polyutov
S
S
Minkov
I
I
Pietzsch
A
A
Nagasono
M
M
Gel'mukhanov
F
F
Triguero
L
L
Piancastelli
M-N
MN
Wurth
W
W
Agren
H
H
Föhlisch
A
A