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Title

Lateral engineering of surface states – towards surface-state nanoelectronics

AuthorsGarcía de Abajo, Francisco Javier ; Cordón, J.; Corso, Martina ; Schiller, Frederik ; Ortega, J. Enrique
Issue Date2010
PublisherRoyal Society of Chemistry (Great Britain)
CitationNanoscale 2(5): 717-721 (2010)
AbstractPatterned metal surfaces can host electron quantum waves that display interference phenomena over distances of a few nanometres, thus providing excellent information carriers for future atomic-scale devices. Here we demonstrate that collimation and waveguiding of surface electrons can be realized in silver-induced strain dislocation networks on Cu(111) surfaces, as a conceptual proof-of-principle of surface-state nanoelectronics (SSNE). The Ag/Cu(111) system exhibits featured surface bands with gaps at the Fermi energy, which are basic requirements for a potential SSNE material. We establish a solid analogy between the behavior of surface-state electrons and surface plasmons in patterned metal surfaces, thus facilitating the transfer of existing knowledge on plasmonic structures to the new scenario presented by engineered electronic surface-state nanostructures, with the advantage of a 1000-fold reduction in wavelength and geometrical parameters.
Description5 páginas, 3 figuras.
Publisher version (URL)http://dx.doi.org/10.1039/B9NR00386J
URIhttp://hdl.handle.net/10261/44135
DOI10.1039/B9NR00386J
ISSN2040-3364
E-ISSN2040-3372
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