Silicene Nanoribbons on Pb-Reconstructed Si(111) Surface

Condensed Matter

StÈ©pniak-Dybala, Agnieszka¹ 

关键词: 2D materials;    silicene;    STM;    DFT;   

DOI  :  10.3390/condmat1010008

学科分类：凝聚态物理

来源: mdpi

【 摘 要 】

We report on the initial stage of growing of silicon nanostructures on Pb-induced3 ×3and3 ×7reconstructed Si(111) surfaces. The deposition of 0.75 monolayer of Si at a temperature of around 200 K results in Si nanoribbons a few-nanometers in length running in three equivalent high symmetry directions of Si(111) surface, as revealed by low temperature scanning tunneling microscopy measurements. The nanoribbons are predominantly 1.6 nm wide and show local3 ×3reconstruction. These findings are interpreted within the framework of silicene nanoribbons grown on a bare Si(111) surface.

【 授权许可】

CC BY