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Title: Electrical conductivity of reconstructed Si(111) surface with sodium-doped C{sub 60} layers

Electrical conductance of sodium-doped C{sub 60} ultra-thin layers (1–6 monolayers) grown on the Na-adsorbed Si(111)√3 × √3-Au surface has been studied in situ by four-point probe technique, combined with low-energy electron diffraction observations. Evidence of conductance channel formation through the C{sub 60} ultrathin layer is demonstrated as a result of Na dosing of 3 and 6 monolayers thick C{sub 60} layers. The observed changes in surface conductivity can be attributed to the formation of fulleride-like NaC{sub 60} and Na{sub 2}C{sub 60} compound layers.
Authors:
;  [1] ;  [2] ; ;  [1] ;  [1] ;  [2] ;  [2]
  1. Institute of Automation and Control Processes, FEB RAS, Vladivostok 690041 (Russian Federation)
  2. (Russian Federation)
Publication Date:
OSTI Identifier:
22395637
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 1; Other Information: (c) 2015 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; CRYSTAL STRUCTURE; DOPED MATERIALS; ELECTRIC CONDUCTIVITY; ELECTRON DIFFRACTION; FULLERENES; GOLD; LAYERS; PROBES; SILICON; SODIUM; SURFACES; THIN FILMS