Contribution of the buffer layer to the Raman spectrum of epitaxial graphene on SiC(0001)

Reference : Contribution of the buffer layer to the Raman spectrum of epitaxial graphene on SiC(0001)


	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Physics
	To cite this reference:	http://hdl.handle.net/10993/5641

Title :	Contribution of the buffer layer to the Raman spectrum of epitaxial graphene on SiC(0001)
Language :	English
Author, co-author :	Fromm, F. [> >]
	Jr, M. H. Oliveira [> >]
	Molina-Sanchez, Alejandro [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
	Hundhausen, M. [> >]
	Lopes, J. M. J. [> >]
	Riechert, H. [> >]
	Wirtz, Ludger [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
	Seyller, T. [> >]
Publication date :	2013
Journal title :	New Journal of Physics
Publisher :	Institute of Physics
Volume :	15
Issue/season :	4
Pages :	043031
Peer reviewed :	Yes (verified by ORBi^lu)
Audience :	International
ISSN :	1367-2630
City :	Bristol
Country :	United Kingdom
Abstract :	[en] We report a Raman study of the so-called buffer layer with $(6 3 6 3)R30^ $ periodicity which forms the intrinsic interface structure between epitaxial graphene and SiC(0001). We show that this interface structure leads to a non-vanishing signal in the Raman spectrum at frequencies in the range of the D- and G-band of graphene and discuss its shape and intensity. Ab initio phonon calculations reveal that these features can be attributed to the vibrational density of states of the buffer layer.
Permalink :	http://hdl.handle.net/10993/5641
Other URL :	http://stacks.iop.org/1367-2630/15/i=4/a=043031

File(s) associated to this reference

Fulltext file(s):

	File	Commentary	Version	Size	Access
Open access	1367-2630_15_4_043031.pdf		Publisher postprint	1.96 MB	View/Open

All documents in ORBi^lu are protected by a user license.