Structure of one-dimensional monolayer Si nanoribbons on Ag(111)

Lingyu Feng, Akitoshi Shiotari, Keisuke Yabuoshi, Masahiro Fukuda, Taisuke Ozaki, and Yoshiaki Sugimoto
Phys. Rev. Materials 5, 034002 – Published 9 March 2021
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Abstract

One-dimensional silicon nanoribbons (SiNRs) have the potential for application to future electronic devices because of their compatibility with current silicon-based electronic devices and their theoretical outstanding electronic properties, such as the size-dependent band gap. Here we grew SiNRs by the deposition of Si on a Ag(111) surface. We investigated SiNRs on the Ag(111) surface using a combination of scanning tunneling microscopy (STM), atomic force microscopy (AFM), and density functional theory (DFT) calculations. The atomic resolution STM and AFM images revealed that SiNRs have the same width and align along the equivalent orientations of Ag(111). The main body of SiNRs was found to be symmetric about the long axes of the ribbons, but the terminals of SiNRs break the symmetry. The DFT calculation results revealed a buckled single-layer structure of SiNRs, which is composed of Si hexagonal and tetragonal rings.

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  • Received 6 October 2020
  • Revised 22 January 2021
  • Accepted 23 February 2021

DOI:https://doi.org/10.1103/PhysRevMaterials.5.034002

©2021 American Physical Society

Physics Subject Headings (PhySH)

  1. Physical Systems
Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Lingyu Feng1, Akitoshi Shiotari1, Keisuke Yabuoshi1, Masahiro Fukuda2, Taisuke Ozaki2, and Yoshiaki Sugimoto1,*

  • 1Department of Advanced Materials Science, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
  • 2Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan

  • *ysugimoto@k.u-tokyo.ac.jp

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Issue

Vol. 5, Iss. 3 — March 2021

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