Various atomic structures of monolayer silicene fabricated on Ag(111)

Silicene, a monolayer of silicon atoms arranged in honeycomb lattices, can be synthesized on the Ag(111) surface, where it forms several superstructures with different buckling patterns and periodicity. Using scanning tunneling microscopy (STM), we obtained high-resolution images of silicene grown o...

Full description

Saved in:
Bibliographic Details
Published in:New journal of physics 2014-07, Vol.16 (7), p.75006-9
Main Authors: Liu, Zhi-Long, Wang, Mei-Xiao, Xu, Jin-Peng, Ge, Jian-Feng, Lay, Guy Le, Vogt, Patrick, Qian, Dong, Gao, Chun-Lei, Liu, Canhua, Jia, Jin-Feng
Format: Article
Language:English
Subjects:
Atomic structure
Computer simulation
Honeycomb
Image resolution
Lattices
Monolayers
Periodic variations
Phases
Physics
scanning tunneling microscope
Scanning tunneling microscopy
Silicene
Silver
Superstructures
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Silicene, a monolayer of silicon atoms arranged in honeycomb lattices, can be synthesized on the Ag(111) surface, where it forms several superstructures with different buckling patterns and periodicity. Using scanning tunneling microscopy (STM), we obtained high-resolution images of silicene grown on Ag(111) and revealed its five phases, i.e., 4 × 4 − α, 4 × 4 − β,  − α,  − β and  − γ, some observed for the first time. For each of the phases, we have determined its atomic structure by comparing the atomic-resolution STM images with theoretical simulation results previously reported. We thus eliminate the contradictions of previous studies on the structural models of various silicene phases supported by the Ag(111) surface.
ISSN:1367-2630
1367-2630
DOI:10.1088/1367-2630/16/7/075006