Issue 27, 2013
From the journal:

Physical Chemistry Chemical Physics

Evidence of confinement of the π plasmon in periodically rippled graphene on Ru(0001)†

Antonio Politano,a   Davide Campi,b   Vincenzo Formosoac  and  Gennaro Chiarello*ac  

* Corresponding authors

a Dipartimento di Fisica, Università degli Studi della Calabria, 87036 Rende, Cs, Italy
E-mail: gennaro.chiarello@fis.unical.it

b Dipartimento di Scienza dei Materiali, Università Milano-Bicocca, 20125 Milano, Italy

c Consorzio Nazionale Interuniversitario di Scienze Fisiche della Materia, via della Vasca Navale, 84, 00146 Roma, Italy

Abstract

High-resolution electron energy loss spectroscopy has been used to study the electronic response of periodically rippled monolayer graphene grown on Ru(0001). A plasmonic mode, assigned to the π plasmon, has been observed at around 6 eV. The dispersion curve of this collective mode indicates plasmon confinement within the hills of the ripples. Moreover, we found that the corrugation of the graphene sheet also significantly affects the damping processes of the π plasmon.

Graphical abstract: Evidence of confinement of the π plasmon in periodically rippled graphene on Ru(0001)

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Article information

DOI
https://doi.org/10.1039/C3CP51954F
Article type
Paper
Submitted
08 May 2013
Accepted
13 May 2013
First published
14 May 2013

Phys. Chem. Chem. Phys., 2013,15, 11356-11361

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Evidence of confinement of the π plasmon in periodically rippled graphene on Ru(0001)

A. Politano, D. Campi, V. Formoso and G. Chiarello, Phys. Chem. Chem. Phys., 2013, 15, 11356 DOI: 10.1039/C3CP51954F

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