Search: onr:"swepub:oai:DiVA.org:kth-9734" >
X-ray absorption an...
-
Feifel, R.Uppsala universitet,Mjukröntgenfysik
(author)
X-ray absorption and resonant Auger spectroscopy of O(2) in the vicinity of the O 1s ->sigma* resonance : Experiment and theory
- Article/chapterEnglish2008
Publisher, publication year, extent ...
-
American Institute of Physics (AIP),2008
-
printrdacarrier
Numbers
-
LIBRIS-ID:oai:DiVA.org:kth-9734
-
https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-9734URI
-
https://doi.org/10.1063/1.2831920DOI
-
https://lup.lub.lu.se/record/1041781URI
-
https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-103174URI
Supplementary language notes
-
Language:English
-
Summary in:English
Part of subdatabase
Classification
-
Subject category:ref swepub-contenttype
-
Subject category:art swepub-publicationtype
Notes
-
QC 20100916
-
We report on an experimental and theoretical investigation of x-ray absorption and resonant Auger electron spectra of gas phase O(2) recorded in the vicinity of the O 1s ->sigma* excitation region. Our investigation shows that core excitation takes place in a region with multiple crossings of potential energy curves of the excited states. We find a complete breakdown of the diabatic picture for this part of the x-ray absorption spectrum, which allows us to assign an hitherto unexplained fine structure in this spectral region. The experimental Auger data reveal an extended vibrational progression, for the outermost singly ionized X (2)Pi(g) final state, which exhibits strong changes in spectral shape within a short range of photon energy detuning (0 eV>Omega>-0.7 eV). To explain the experimental resonant Auger electron spectra, we use a mixed adiabatic/diabatic picture selecting crossing points according to the strength of the electronic coupling. Reasonable agreement is found between experiment and theory even though the nonadiabatic couplings are neglected. The resonant Auger electron scattering, which is essentially due to decay from dissociative core-excited states, is accompanied by strong lifetime-vibrational and intermediate electronic state interferences as well as an interference with the direct photoionization channel. The overall agreement between the experimental Auger spectra and the calculated spectra supports the mixed diabatic/adiabatic picture.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
-
Velkov, YasenKTH,Teoretisk kemi(Swepub:kth)u1fun1o4
(author)
-
Carravetta, V.
(author)
-
Angeli, C.
(author)
-
Cimiraglia, R.
(author)
-
Salek, PawelKTH,Teoretisk kemi(Swepub:kth)u1jnpnxh
(author)
-
Gel'mukhanov, FarisKTH,Teoretisk kemi(Swepub:kth)u1tlrmzw
(author)
-
Sorensen, S. L.
(author)
-
Piancastelli, M. N.Uppsala universitet,Yt- och gränsskiktsvetenskap
(author)
-
De Fanis, A.
(author)
-
Okada, K.
(author)
-
Kitajima, M.
(author)
-
Tanaka, T.
(author)
-
Tanaka, H.
(author)
-
Ueda, K.
(author)
-
Ristinmaa Sörensen, StaceyLund University,Lunds universitet,Synkrotronljusfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Synchrotron Radiation Research,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)slju-sri
(author)
-
Uppsala universitetMjukröntgenfysik
(creator_code:org_t)
Related titles
-
In:Journal of Chemical Physics: American Institute of Physics (AIP)128:60021-96061089-7690
Internet link
Find in a library
To the university's database
- By the author/editor
-
Feifel, R.
-
Velkov, Yasen
-
Carravetta, V.
-
Angeli, C.
-
Cimiraglia, R.
-
Salek, Pawel
-
show more...
-
Gel'mukhanov, Fa ...
-
Sorensen, S. L.
-
Piancastelli, M. ...
-
De Fanis, A.
-
Okada, K.
-
Kitajima, M.
-
Tanaka, T.
-
Tanaka, H.
-
Ueda, K.
-
Ristinmaa Sörens ...
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Chemical Science ...
-
and Theoretical Chem ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Atom and Molecul ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
- Articles in the publication
-
Journal of Chemi ...
- By the university
-
Royal Institute of Technology
-
Lund University
-
Uppsala University