liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
X-ray fluorescence spectra of metals excited below threshold
Uppsala University.ORCID iD: 0000-0002-0317-0190
Uppsala University.
Uppsala University.
Uppsala University.
Show others and affiliations
2003 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 68, no 045119Article in journal (Refereed) Published
Abstract [en]

X-ray scattering spectra of Cu and Ni metals have been measured using monochromatic synchrotron radiation tuned from far above to more than 10 eV below threshold. Energy conservation in the scattering process is found to be sufficient to explain the modulation of the spectral shape, neglecting momentum conservation and channel interference. At excitation energies close to and above threshold, the emission spectra map the occupied local partial density of states. For the subthreshold excitations, the high-energy flank of the inelastic scattering exhibits a Raman-type linear dispersion, and an asymmetric low-energy tail develops. For excitation far below threshold the emission spectra are proportional to a convolution of the occupied and unoccupied local partial densities of states.

Place, publisher, year, edition, pages
2003. Vol. 68, no 045119
National Category
Natural Sciences
URN: urn:nbn:se:liu:diva-17414DOI: 10.1103/PhysRevB.68.045119OAI: diva2:209034

Original Publication:Martin Magnuson, J.-E. Rubensson, A. Föhlisch, N. Wassdahl, A. Nilsson and N. Mårtensson, X-ray fluorescence spectra of metals excited below threshold, 2003, Physical Review B. Condensed Matter and Materials Physics, (68), 045119. American Physical Society

Available from: 2009-03-23 Created: 2009-03-23 Last updated: 2013-10-02Bibliographically approved
In thesis
1. Electronic Structure Studies Using Resonant X-ray and Photemission Spectroscopy
Open this publication in new window or tab >>Electronic Structure Studies Using Resonant X-ray and Photemission Spectroscopy
1999 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

This thesis addresses the electronic structure of molecules and solids using resonant X-ray emission and photoemission spectroscopy. The use of monochromatic synchrotron radiation and the improved performance of the instrumentation have opened up the possibility of detailed analyses of the response of the electronic systems under interaction with X-rays. The experimental studies are accompanied by numerical ab initio calculations in the formalism of resonant inelastic scattering. The energy selectivity has made it possible for the first time to study how the chemical bonds in a molecule break up during resonant inelastic X-ray scattering. In the conjugated polymer systems, the element selectivity of the X-ray emission process made it possible to probe the different atomic elements separately. The X-ray emission technique proved to be useful for extracting isomeric information, and for measuring the change in the valence levels at different degrees of doping. In this thesis, spectral satellite features in transition metals were thoroughly investigated for various excitation energies around a core-level threshold. By measuring the relative spectral intensity of the satellites it was possible to extract information on the partial core-level widths. Using the nickel metal system as an example, it was shown that it is possible to probe the different core-excited states close toshake-up thresholds by measuring the relative spectral intensity variation of the Auger emission.Resonant photoemission measurements showed unambiguous evidence of interference effects. Theseeffects were also thoroughly probed using angle-dependent measurements. The combination of X-rayemission and absorption were useful for studying buried layers and interfaces due to the appreciable penetration depth of soft X-rays. X-ray scattering was further found to be useful for studying low-energy excited states of rare earth metallic compounds and transition metal oxides.

Place, publisher, year, edition, pages
Uppsala: Uppsala University, 1999
, Acta Universitatis Upsaliensis, ISSN 1104-232X ; 452
Electronic structure, resonant x-ray emission, photoemission spectroscopy
National Category
Physical Sciences
urn:nbn:se:liu:diva-56480 (URN)91-554-4463-6 (ISBN)
Public defence
Available from: 2010-05-19 Created: 2010-05-18 Last updated: 2013-11-14Bibliographically approved

Open Access in DiVA

fulltext(101 kB)217 downloads
File information
File name FULLTEXT01.pdfFile size 101 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full textX-ray spectroscopy using Sychrotron RadiationArXiVPRBMendeleyResearchgate

Search in DiVA

By author/editor
Magnuson, Martin
In the same journal
Physical Review B. Condensed Matter and Materials Physics
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 217 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 85 hits
ReferencesLink to record
Permanent link

Direct link