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Article Dans Une Revue Physical Review Letters Année : 2005

Metallic and Semimetallic Silicon ⟨100⟩ Nanowires

Riccardo Rurali
  • Fonction : Auteur
Nicolas Lorente

Résumé

Silicon nanowires grown along the <100>-direction with a bulk Si core are studied with density functional calculations. Two surface reconstructions prevail after exploration of a large fraction of the phase space of nanowire reconstructions. Despite their energetical equivalence, one of the reconstructions is found to be strongly metallic while the other one is semi-metallic. This electronic-structure behavior is dictated by the particular surface states of each reconstruction. These results imply that doping is not required in order to obtain good conducting Si nanowires.

Dates et versions

hal-00126712 , version 1 (25-01-2007)

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Citer

Riccardo Rurali, Nicolas Lorente. Metallic and Semimetallic Silicon ⟨100⟩ Nanowires. Physical Review Letters, 2005, 94, pp.026805. ⟨10.1103/PhysRevLett.94.026805⟩. ⟨hal-00126712⟩
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