STEM plasmon spectroscopy of free standing graphene

U. Bangert; T. Eberlein; R. R. Nair; R. Jones; M. Gass; A. L. Bleloch; K. S. Novoselov; A. Geim; P. R. Briddon

doi:10.1002/pssa.200879707

STEM plasmon spectroscopy of free standing graphene

U. Bangert, T. Eberlein, R. R. Nair, R. Jones, M. Gass, A. L. Bleloch, K. S. Novoselov, A. Geim, P. R. Briddon

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Abstract

Plasmon spectroscopy of the thinnest possible membrane, a single layer of carbon atoms, graphene, has been carried out in conjunction with ab initio calculations of the low loss function. We observe π- and π + σ-surface plasmon modes in free-standing single sheets at 4.7 eV and 14.8 eV which are substantially red-shifted from their values in graphite. These modes are in very good agreement with the theoretical spectra which find the π- and π + π in-plane modes of graphene at 4.5 eV and 14.5 eV. We also find that there is little loss caused by out-of-plane modes for energies less than about 10 eV. © 2008 WILEY-VCH Verlag GmbH & Co. KGaA.

Original language	English
Pages (from-to)	2265-2269
Number of pages	4
Journal	Physica Status Solidi (A) Applications and Materials Science
Volume	205
Issue number	9
DOIs	https://doi.org/10.1002/pssa.200879707
Publication status	Published - Sept 2008

Keywords

graphite
carbon
semimetal
nanotubes
surface
solids
films

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title = "STEM plasmon spectroscopy of free standing graphene",

abstract = "Plasmon spectroscopy of the thinnest possible membrane, a single layer of carbon atoms, graphene, has been carried out in conjunction with ab initio calculations of the low loss function. We observe π- and π + σ-surface plasmon modes in free-standing single sheets at 4.7 eV and 14.8 eV which are substantially red-shifted from their values in graphite. These modes are in very good agreement with the theoretical spectra which find the π- and π + π in-plane modes of graphene at 4.5 eV and 14.5 eV. We also find that there is little loss caused by out-of-plane modes for energies less than about 10 eV. {\textcopyright} 2008 WILEY-VCH Verlag GmbH \& Co. KGaA.",

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TY - JOUR

T1 - STEM plasmon spectroscopy of free standing graphene

AU - Bangert, U.

AU - Eberlein, T.

AU - Nair, R. R.

AU - Jones, R.

AU - Gass, M.

AU - Bleloch, A. L.

AU - Novoselov, K. S.

AU - Geim, A.

AU - Briddon, P. R.

N1 - 354QI Times Cited:3 Cited References Count:21

PY - 2008/9

Y1 - 2008/9

N2 - Plasmon spectroscopy of the thinnest possible membrane, a single layer of carbon atoms, graphene, has been carried out in conjunction with ab initio calculations of the low loss function. We observe π- and π + σ-surface plasmon modes in free-standing single sheets at 4.7 eV and 14.8 eV which are substantially red-shifted from their values in graphite. These modes are in very good agreement with the theoretical spectra which find the π- and π + π in-plane modes of graphene at 4.5 eV and 14.5 eV. We also find that there is little loss caused by out-of-plane modes for energies less than about 10 eV. © 2008 WILEY-VCH Verlag GmbH & Co. KGaA.

AB - Plasmon spectroscopy of the thinnest possible membrane, a single layer of carbon atoms, graphene, has been carried out in conjunction with ab initio calculations of the low loss function. We observe π- and π + σ-surface plasmon modes in free-standing single sheets at 4.7 eV and 14.8 eV which are substantially red-shifted from their values in graphite. These modes are in very good agreement with the theoretical spectra which find the π- and π + π in-plane modes of graphene at 4.5 eV and 14.5 eV. We also find that there is little loss caused by out-of-plane modes for energies less than about 10 eV. © 2008 WILEY-VCH Verlag GmbH & Co. KGaA.

KW - graphite

KW - carbon

KW - semimetal

KW - nanotubes

KW - surface

KW - solids

KW - films

U2 - 10.1002/pssa.200879707

DO - 10.1002/pssa.200879707

M3 - Article

SN - 1862-6300

VL - 205

SP - 2265

EP - 2269

JO - Physica Status Solidi (A) Applications and Materials Science

JF - Physica Status Solidi (A) Applications and Materials Science

IS - 9

ER -

STEM plasmon spectroscopy of free standing graphene

Abstract

Keywords

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