Strong Band Hybridization between Silicene and Ag(111)Substrate

Abstract

By using first-principles calculations, we systematically investigated several observed phases of silicene on Ag(111) substrates and their electronic structures. We find that the original Dirac cone of silicene is about 1.5-1.7 eV deeply below the Fermi level and severely destroyed by the band hybridization between silicene and Ag in all the examined phases. Thus, silicene synthesized on Ag(111) substrates could not preserve its excellent electronic property and new method is needed to develop in synthesizing silicene with its Dirac cone surviving.

References in corpus (1)

• On the electronic structure of silicene on Ag substrate: strong hybridization effects

Cited by in corpus (5)

• The Rare Two-Dimensional Materials with Dirac Cones
• Phonon Properties, Thermal Expansion, and Thermomechanics of Silicene and Germanene
• Silicene on Substrates: A Theoretical Perspective
• Size, vacancy and temperature effects on Young's modulus of silicene nanoribbons
• Does the Dirac Cone Exist in Silicene on Metal Substrates?