Details

Autor(en) / Beteiligte

• De Padova, Paola
• Vogt, Patrick
• Resta, Andrea
• Avila, Jose
• Razado-Colambo, Ivy
• Quaresima, Claudio
• Ottaviani, Carlo
• Olivieri, Bruno
• Bruhn, Thomas
• Hirahara, Toru
• Shirai, Terufusa
• Hasegawa, Shuji
• Carmen Asensio, Maria
• Le Lay, Guy

Titel

Evidence of Dirac fermions in multilayer silicene

Ist Teil von

• Applied physics letters, 2013-04, Vol.102 (16)

Ort / Verlag

American Institute of Physics

Erscheinungsjahr

2013

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Multilayer silicene, the silicon analogue of multilayer graphene, grown on silver (111) surfaces, possesses a honeycomb (√3 × √3)R30° reconstruction, observed by scanning tunnelling microscopy at room temperature, past the initial formation of the dominant, 3×3 reconstructed, silicene monolayer. For a few layers silicene film we measure by synchrotron radiation photoelectron spectroscopy, a cone-like dispersion at the Brillouin zone centre due to band folding. π* and π states meet at ∼0.25 eV below the Fermi level, providing clear evidence of the presence of gapless Dirac fermions.