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Electronic Stopping of Slow Protons in Transition and Rare Earth Metals: Breakdown of the Free Electron Gas Concept
Johannes Kepler Univ Linz, IEP AOP, Altenbergerstr 69, A-4040 Linz, Austria..
Johannes Kepler Univ Linz, IEP AOP, Altenbergerstr 69, A-4040 Linz, Austria.;Univ Sao Paulo, Inst Fis, Rua Matao 1371, BR-05508090 Sao Paulo, Brazil..
Johannes Kepler Univ Linz, IEP AOP, Altenbergerstr 69, A-4040 Linz, Austria..
Johannes Kepler Univ Linz, IEP AOP, Altenbergerstr 69, A-4040 Linz, Austria..
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2017 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 118, no 10, 103401Article in journal (Refereed) Published
Abstract [en]

The electronic stopping cross sections (SCS) of Ta and Gd for slow protons have been investigated experimentally. The data are compared to the results for Pt and Au to learn how electronic stopping in transition and rare earth metals correlates with features of the electronic band structures. The extraordinarily high SCS observed for protons in Ta and Gd cannot be understood in terms of a free electron gas model, but are related to the high densities of both occupied and unoccupied electronic states in these metals.

Place, publisher, year, edition, pages
2017. Vol. 118, no 10, 103401
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-318925DOI: 10.1103/PhysRevLett.118.103401ISI: 000396047400005PubMedID: 28339263OAI: oai:DiVA.org:uu-318925DiVA: diva2:1087057
Funder
Swedish Foundation for Strategic Research , RIF14-0053
Available from: 2017-04-05 Created: 2017-04-05 Last updated: 2017-04-05Bibliographically approved

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