Jump to main content
Jump to site search

Issue 34, 2017
Previous Article Next Article

Evolution of the linear band dispersion of monolayer and bilayer germanene on Cu(111)

Author affiliations

Abstract

The structural and electronic properties of germanene are always strongly modulated by the hybridization effects with metal substrates. In order to see what will happen when a buffer layer is introduced in-between germanene and metal substrates, we study the structural and electronic properties of the recently synthesized monolayer and bilayer germanene on Cu(111) though first-principles calculations. Our results show that the monolayer germanene on Cu(111) displays a nearly flat configuration and interface states form between the Ge pz and Cu sp-like states, with the Ge π states maintaining the Dirac character. For bilayer germanene on Cu(111), interactions with Cu(111) are reduced due to germanene inter-layer interactions, which is beneficial for the transfer of germanene. In comparison with the bottom germanene layer, the Ge pz character of the upper germanene layer can be maintained near the Fermi level. Since the linear band dispersion is at the heart of the novel quantum phenomenon, our results will facilitate research into the synthesis, extraordinary quantum properties, and applications based on the two-dimensional (2D) germanium system.

Graphical abstract: Evolution of the linear band dispersion of monolayer and bilayer germanene on Cu(111)

Back to tab navigation

Supplementary files

Publication details

The article was received on 28 May 2017, accepted on 31 Jul 2017 and first published on 31 Jul 2017


Article type: Paper
DOI: 10.1039/C7CP03597G
Citation: Phys. Chem. Chem. Phys., 2017,19, 22844-22851
  •   Request permissions

    Evolution of the linear band dispersion of monolayer and bilayer germanene on Cu(111)

    F. Li, W. Wei, X. Lv, B. Huang and Y. Dai, Phys. Chem. Chem. Phys., 2017, 19, 22844
    DOI: 10.1039/C7CP03597G

Search articles by author

Spotlight

Advertisements