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Appl. Phys. Lett. 96, 261905 (2010); http://dx.doi.org/10.1063/1.3459143 (3 pages)

Evidence of graphene-like electronic signature in silicene nanoribbons

Paola De Padova1, Claudio Quaresima1, Carlo Ottaviani1, Polina M. Sheverdyaeva2, Paolo Moras3, Carlo Carbone3, Dinesh Topwal4, Bruno Olivieri5, Abdelkader Kara6, Hamid Oughaddou7, Bernard Aufray8, and Guy Le Lay8

1CNR-ISM, via Fosso del Cavaliere, 00133 Roma, Italy
2Sincrotrone Trieste, S. S. Km163.5, I-34012 Basovizza (TS), Italy
3CNR-ISM, Trieste, S. S. Km163.5, I-34012 Basovizza (TS), Italy
4ICTP, Strada Costiera 11, 34151 Trieste, Italy
5CNR-ISAC, via Fosso del Cavaliere, 00133 Roma, Italy
6Department of Physics, University of Central Florida, Orlando, Florida 32816, USA
7DSM/IRAMIS/SPCSI, CEA, Bât. 462, Saclay, 91191 Gif sur Yvette, France
8CINaM-CNRS, Campus de Luminy, Case 913, 13288 Marseille Cedex 9, France

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(Received 18 May 2010; accepted 10 June 2010; published online 30 June 2010)

We report on the electronic properties of straight, 1.6 nm wide, silicene nanoribbons on Ag(110), arranged in a one-dimensional grating with a pitch of 2 nm, whose high-resolution scanning tunneling microscopy images reveal a honeycomb geometry. Angle-resolved photoemission shows quantum confined electronic states of one-dimensional character. The silicon band dispersion along the direction of the nanoribbons suggests a behavior analogous to the Dirac cones of graphene on different substrates.

© 2010 American Institute of Physics

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KEYWORDS and PACS

PACS

  • 73.22.-f

    Electronic structure of nanoscale materials and related systems

  • 61.46.-w

    Structure of nanoscale materials

  • 79.60.Jv

    Interfaces; heterostructures; nanostructures

ARTICLE DATA

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

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    References

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