Profile of resonant photoelectron spectra versus the spectral function width and photon frequency detuning
(2004) In Physical Review A (Atomic, Molecular and Optical Physics) 70(3).- Abstract
- The outermost, singly ionized valence state of N-2, the X (2)Sigma(g)(+) state, is investigated in detail as a function of the photon frequency bandwidth for core excitation to the N 1s-->pi(*) resonance, where the photon frequency is tuned in between the first two vibrational levels of this bound intermediate electronic state. We find a strong, nontrivial dependence of the resulting resonant photoemission spectral profile on the monochromator function width and the frequency of its peak position. For narrow bandwidth excitation we observe a well resolved vibrational fine structure in the final electron spectrum, which for somewhat broader bandwidths gets smeared out into a continuous structure. For even broader monochromator... (More)
- The outermost, singly ionized valence state of N-2, the X (2)Sigma(g)(+) state, is investigated in detail as a function of the photon frequency bandwidth for core excitation to the N 1s-->pi(*) resonance, where the photon frequency is tuned in between the first two vibrational levels of this bound intermediate electronic state. We find a strong, nontrivial dependence of the resulting resonant photoemission spectral profile on the monochromator function width and the frequency of its peak position. For narrow bandwidth excitation we observe a well resolved vibrational fine structure in the final electron spectrum, which for somewhat broader bandwidths gets smeared out into a continuous structure. For even broader monochromator bandwidths, it converts again into a well resolved vibrational progression. In addition, spectral features appearing below the adiabatic transition energy of the ground state of N-2(+) are observed for broadband excitation. A model taking into account the interplay of the partial scattering cross section with the spectral function is presented and applied to the X (2)Sigma(g)(+) final state of N-2(+). (Less)
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https://lup.lub.lu.se/record/262675
- author
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review A (Atomic, Molecular and Optical Physics)
- volume
- 70
- issue
- 3
- article number
- 032708
- publisher
- American Physical Society
- external identifiers
-
- wos:000224623000077
- scopus:20844433040
- ISSN
- 1050-2947
- DOI
- 10.1103/PhysRevA.70.032708
- language
- English
- LU publication?
- yes
- id
- d4511318-9f38-416f-bcbc-d2c71e7f7a23 (old id 262675)
- date added to LUP
- 2016-04-01 12:07:25
- date last changed
- 2022-01-26 23:08:32
@article{d4511318-9f38-416f-bcbc-d2c71e7f7a23,
abstract = {{The outermost, singly ionized valence state of N-2, the X (2)Sigma(g)(+) state, is investigated in detail as a function of the photon frequency bandwidth for core excitation to the N 1s-->pi(*) resonance, where the photon frequency is tuned in between the first two vibrational levels of this bound intermediate electronic state. We find a strong, nontrivial dependence of the resulting resonant photoemission spectral profile on the monochromator function width and the frequency of its peak position. For narrow bandwidth excitation we observe a well resolved vibrational fine structure in the final electron spectrum, which for somewhat broader bandwidths gets smeared out into a continuous structure. For even broader monochromator bandwidths, it converts again into a well resolved vibrational progression. In addition, spectral features appearing below the adiabatic transition energy of the ground state of N-2(+) are observed for broadband excitation. A model taking into account the interplay of the partial scattering cross section with the spectral function is presented and applied to the X (2)Sigma(g)(+) final state of N-2(+).}},
author = {{Feifel, R and Kimberg, V and Baev, A and Gel'mukhanov, F and Agren, H and Miron, C and Ohrwall, G and Piancastelli, MN and Ristinmaa Sörensen, Stacey and Karlsson, L and Svensson, S}},
issn = {{1050-2947}},
language = {{eng}},
number = {{3}},
publisher = {{American Physical Society}},
series = {{Physical Review A (Atomic, Molecular and Optical Physics)}},
title = {{Profile of resonant photoelectron spectra versus the spectral function width and photon frequency detuning}},
url = {{http://dx.doi.org/10.1103/PhysRevA.70.032708}},
doi = {{10.1103/PhysRevA.70.032708}},
volume = {{70}},
year = {{2004}},
}