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Correlated Electrons Step by Step: Itinerant-to-Localized Transition of Fe Impurities in Free-Electron Metal Hosts
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2010 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 104, no 11, 117601- p.Article in journal (Refereed) Published
Abstract [en]

High-resolution photoemission spectroscopy and ab initio calculations have been employed to analyze the onset and progression of d-sp hybridization in Fe impurities deposited on alkali metal films. The interplay between delocalization, mediated by the free-electron environment, and Coulomb interaction among d electrons gives rise to complex electronic configurations. The multiplet structure of a single Fe atom evolves and gradually dissolves into a quasiparticle peak near the Fermi level with increasing host electron density. The effective multiorbital impurity problem within the exact diagonalization scheme describes the whole range of hybridizations.

Place, publisher, year, edition, pages
2010. Vol. 104, no 11, 117601- p.
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Physical Sciences
URN: urn:nbn:se:uu:diva-137639DOI: 10.1103/PhysRevLett.104.117601ISI: 000275802600042OAI: oai:DiVA.org:uu-137639DiVA: diva2:378450
Available from: 2010-12-15 Created: 2010-12-15 Last updated: 2012-03-17Bibliographically approved

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Eriksson, Olle
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Department of Physics and Materials Science
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