M F Luo et al 2004 J. Phys.: Condens. Matter 16 6257 doi:10.1088/0953-8984/16/34/023
M F Luo1,2, Z Y Li3,4 and W Allison1
Show affiliationsElectron energy loss spectroscopy has been used to probe the coverage-dependent electronic excitations from a C60 covered graphite surface. In the energy region corresponding to the optical band-gap of the bulk C60 solid, the dipole-scattering contribution to the loss features is simulated by a double dielectric layer model. We find that a good agreement between the simulated spectra and the experimental results can be achieved for a C60 multilayer. However, an additional energy loss channel is required in order to describe the electronic excitations for a C60 monolayer. The possible significances of this finding are discussed.
68.49.Jk Electron scattering from surfaces
71.45.Gm Exchange, correlation, dielectric and magnetic response functions, plasmons
71.20.Tx Fullerenes and related materials; intercalation compounds
Issue 34 (1 September 2004)
Received 30 May 2004
Published 13 August 2004
M F Luo et al 2004 J. Phys.: Condens. Matter 16 6257
Pei-Ming Ho 2004 Class. Quantum Grav. 21 2641
M Plummer and C J Noble 2003 J. Phys. B: At. Mol. Opt. Phys. 36 L219
A Levstik et al 1998 J. Phys. D: Appl. Phys. 31 2894
M A N Araújo et al 2009 New J. Phys. 11 113008
Sung-Won Youn et al 2009 J. Micromech. Microeng. 19 125010
E Przeździecka et al 2007 Semicond. Sci. Technol. 22 10
A Dimakis et al 1996 J. Phys. A: Math. Gen. 29 6861
A J Venning et al 2005 Phys. Med. Biol. 50 3875
A Kivimäki et al 2009 J. Phys.: Conf. Ser. 190 012051