Surface Phonon Dispersion in Graphite and its Modification Under Interaction with Lanthanum

Susanne Siebentritt, Roland Pues, Karl-Heinz Rieder and Alexander M. Shikin
Additional contact information
Susanne Siebentritt: Free University Berlin, Fachbereich Physik, Arnimallee 14, 14195 Berlin, Germany
Roland Pues: Free University Berlin, Fachbereich Physik, Arnimallee 14, 14195 Berlin, Germany
Karl-Heinz Rieder: Free University Berlin, Fachbereich Physik, Arnimallee 14, 14195 Berlin, Germany
Alexander M. Shikin: St. Petersburg State University, Institute of Physics, St. Petersburg, 198904, Russia

Surface Review and Letters (SRL), 1998, vol. 05, issue 01, 427-431

Abstract: Using high resolution electron energy loss spectroscopy (HREELS) the surface phonon dispersion of graphite has been determined in theΓ Kdirection over the whole energy range and the whole Brillouin zone. By depositing lanthanum and annealing we prepared a GIC-like phase which grows on top of an intermediate carbide. The phonon dispersion of this phase shows the same modes as graphite, but the optical ones are softened and the acoustical ones are stiffened. This is described within a Born-von Karman model. The evolution of the phonon dispersion gives a first hint that the GIC-like phase may develop in two stages: first a monolayer graphite on top of the carbide and then the very thin GIC layer.

Date: 1998
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0218625X98000797
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:srlxxx:v:05:y:1998:i:01:n:s0218625x98000797

Ordering information: This journal article can be ordered from

DOI: 10.1142/S0218625X98000797

Access Statistics for this article

Surface Review and Letters (SRL) is currently edited by S Y Tong

More articles in Surface Review and Letters (SRL) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().