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High-kinetic-energy photoemission spectroscopy of Ni at 1s: 6-eV satellite at 4 eV
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Materials Science, Surface and Interface Science.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Materials Science, Surface and Interface Science.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Materials Science, Materials Theory.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Materials Science, Materials Theory.
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2008 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 78, no 23, 233105- p.Article in journal (Refereed) Published
Abstract [en]

Electron correlations are responsible for many profound phenomena in solid-state physics. A classical example is the 6-eV satellite in the photoelectron spectrum of Ni. Until now the satellite structure has only been investigated at the L shell and more shallow levels. Here we report a high-kinetic-energy photoemission spectroscopy (HIKE) investigation of Ni metal. We present 1s and 2p photoelectron spectra, obtained using excitation energies up to 12.6 keV. Our investigation demonstrates that the energy position of the satellite relative to the main line is different for the 1s and the 2p levels. In combination with electronic structure calculations, we show that this energy shift is attributed to unique differences in the core-valence coupling for the K and L2,3 shells in 3d transition metals, resulting in different screening of the core holes.

Place, publisher, year, edition, pages
2008. Vol. 78, no 23, 233105- p.
Keyword [en]
core levels, nickel, photoelectron spectra, valence bands
National Category
Physical Sciences
Research subject
Physics
Identifiers
URN: urn:nbn:se:uu:diva-103173DOI: 10.1103/PhysRevB.78.233105ISI: 000262245400005OAI: oai:DiVA.org:uu-103173DiVA: diva2:217639
Available from: 2009-05-15 Created: 2009-05-15 Last updated: 2017-01-25Bibliographically approved

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Rusz, JanOppeneer, Peter M.

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