Evidence for an ultrafast breakdown of the BeO band structure due to swift argon and xenon ions

Auger-electron spectra associated with Be atoms in the pure metal lattice and in the stoichiometric oxide have been investigated for different incident charged particles. For fast incident electrons, for Ar7+ and Ar15+ ions as well as Xe15+ and Xe31+ ions at velocities of 6% to 10% the speed of ligh...

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Bibliographic Details
Published inPhysical review letters Vol. 105; no. 18; p. 187603
Main Authors Schiwietz, G, Czerski, K, Roth, M, Grande, P L, Koteski, V, Staufenbiel, F
Format Journal Article
LanguageEnglish
Published United States 29.10.2010
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Summary:Auger-electron spectra associated with Be atoms in the pure metal lattice and in the stoichiometric oxide have been investigated for different incident charged particles. For fast incident electrons, for Ar7+ and Ar15+ ions as well as Xe15+ and Xe31+ ions at velocities of 6% to 10% the speed of light, there are strong differences in the corresponding spectral distributions of Be-K Auger lines. These differences are related to changes in the local electronic band structure of BeO on a femtosecond time scale after the passage of highly charged heavy ions.
ISSN:1079-7114
DOI:10.1103/PhysRevLett.105.187603