期刊
NANOSCALE
卷 2, 期 5, 页码 717-721出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b9nr00386j
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资金
- Spanish MICINN [MAT2007-66050, MAT2007-63083]
- EU [NMP4-SL-2008-213669-ENSEMBLE]
- Basque Government [IT-257-07]
- University of the Basque Country [GIU06/27]
- National Science Foundation [DMR-0084402]
Patterned 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.
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