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K/graphite: Uniform energy shifts of graphite valence states
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Materials Science .
2006 (English)In: Surface Science, ISSN 0039-6028, Vol. 600, no 5, 1160-1164 p.Article in journal (Refereed) Published
Abstract [en]

Ultra-thin graphite overlayers prepared by heating SiC crystals can give highly resolved valence band photoemission spectra. This is exploited to monitor K deposition induced energy shifts of graphite valence band states. States near the corners of the Brillouin zone, responsible for the semimetal character of graphite, are observed to show shifts that are nearly equal to the shifts of the uppermost filled σ state and of an empty state 7.6 eV above E F. The results give credence to the rigid band shift model often used to discuss the electronic structure and charge transfer for graphite ad- and absorption systems. © 2006 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
2006. Vol. 600, no 5, 1160-1164 p.
National Category
Natural Sciences
URN: urn:nbn:se:liu:diva-38790DOI: 10.1016/j.susc.2006.01.011Local ID: 45644OAI: diva2:259639
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2011-01-11

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Yakimova, Rositsa
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