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Local Electronic Properties of Corrugated Silicene Phases
Author(s) -
Chiappe Daniele,
Grazianetti Carlo,
Tallarida Grazia,
Fanciulli Marco,
Molle Alessandro
Publication year - 2012
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201202100
Subject(s) - silicene , scanning tunneling microscope , materials science , epitaxy , graphene , silicon , condensed matter physics , lattice (music) , quantum tunnelling , nanotechnology , chemical physics , crystallography , optoelectronics , physics , chemistry , layer (electronics) , acoustics
The structural and electronic properties of silicene nanosheets epitaxially grown on Ag(111) are systematically investigated by combining scanning tunneling microscopy and scanning tunneling spectroscopy. By carefully tuning the growth parameters, complex 2D silicon structures are obtained, which evidence the presence of corrugated silicene domains. Local modifications of the density of states are observed throughout reconstructed silicene domains and are attributed to the symmetry breaking induced by the interactions with the Ag lattice, in analogy with the case of graphene.