Structural transition of silicene on Ag(111)

• Published in: Surface science Vol. 608; pp. 297 - 300
• Main Authors: Arafune, Ryuichi, Lin, Chun-Liang, Kawahara, Kazuaki, Tsukahara, Noriyuki, Minamitani, Emi, Kim, Yousoo, Takagi, Noriaki, Kawai, Maki
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 01.02.2013; Elsevier
• Subjects: Atomic structure; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; Density functional theory; Deposition; Evolution; Exact sciences and technology; LEED; Low energy electron diffraction; Mathematical analysis; Phase diagrams; Physics; Scanning tunneling microscopy; Silicene; STM; Surface structure; LEED; Silicene; STM; Surface structure; Scanning tunneling microscopy; Phase transformations
• ISSN: 0039-6028; 1879-2758
• DOI: 10.1016/j.susc.2012.10.022

Low energy electron diffraction (LEED), low temperature scanning tunneling microscopy (STM) and density functional theory (DFT) based calculations were used to determine the evolution of the silicene structure on a Ag(111) surface. The phase diagram of the structure was obtained using LEED patterns. The corresponding atomic arrangements were confirmed using STM observations. Results show that the structure of silicene is controlled by the substrate temperature during deposition. Finally, we succeeded in synthesizing silicene on silicene/Ag(111), i.e. bilayer silicene. ► Determining the evolution of the silicene structure on a Ag(111) surface ► A simple equation for discussion feasible structures of silicene on Ag(111) ► Synthesizing silicene on silicene/Ag(111), i.e. bilayer silicene