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Título:	Potential energy landscape for hot electrons in periodically nanostructured graphene
Autor:	Borca, Bogdana; Sánchez-Portal, Daniel CSIC ORCID ; Silkin, Viatcheslav M. CSIC ORCID; Chulkov, Eugene V. CSIC ORCID; Vázquez de Parga, A. L.; Arnau, Andrés CSIC ORCID; Echenique, Pedro M. CSIC ORCID; Miranda, Rodolfo CSIC ORCID
Fecha de publicación:	2010
Editor:	American Physical Society
Citación:	Physical Review Letters 105(3): 036804 (2010)
Resumen:	We explore the spatial variations of the unoccupied electronic states of graphene epitaxially grown on Ru(0001) and observed three unexpected features: the first graphene image state is split in energy; unlike all other image states, the split state does not follow the local work function modulation, and a new interfacial state at þ3 eV appears on some areas of the surface. First-principles calculations explain the observations and permit us to conclude that the system behaves as a self-organized periodic array of quantum dots.
Descripción:	4 páginas, 4 figuras.-- PACS numbers: 73.20.-r, 68.37.Ef, 68.55.-a, 73.22.Pr.-- et al.
Versión del editor:	http://dx.doi.org/10.1103/PhysRevLett.105.036804
URI:	http://hdl.handle.net/10261/44275
DOI:	10.1103/PhysRevLett.105.036804
ISSN:	0031-9007
E-ISSN:	1079-7114
Aparece en las colecciones:	(CFM) Artículos

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Potential energy landscape for hot electrons in periodically nanostructured graphene