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Title: Evidence for hybrid surface metallic band in (4 × 4) silicene on Ag(111)

The electronic band structure of monolayer (4 × 4) silicene on Ag(111) is imaged by angle resolved photoelectron spectroscopy. A dominant hybrid surface metallic band is observed to be located near the bulk Ag sp-band which is also faintly visible. The two-dimensional character of the hybrid band has been distinguished against the bulk character of the Ag(111) sp-band by means of photon energy dependence experiments. The surface band exhibits a steep linear dispersion around the K{sup ¯}{sub Ag} point and has a saddle point near the M{sup ¯}{sub Ag} point of Ag(111) resembling the π-band dispersion in graphene.
Authors:
; ; ; ;  [1]
  1. National Center for Scientific Research “Demokritos,” 15310 Athens (Greece)
Publication Date:
OSTI Identifier:
22253891
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 103; Journal Issue: 23; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; GRAPHENE; HYBRIDIZATION; PHOTOELECTRON SPECTROSCOPY; SILVER; SURFACES